Evidence about the activities

[Uva@90]

Hi All,

Evidence about the activities of the Maya has been gathered through archeological excavations although they may never be completely authenticated because of difficulties in applying carbon dating tests to the fragile remains of the ancient civilization.

A. Maya has been gathered through archeological excavations although they

B. Maya, gathered through archeological excavations, but it

C. Maya has been gathered through archeological excavations but

D. Maya, although gathered through archeological excavations, it

E. Maya has been gathered through archeological excavations, which

OA: C

Why E is wrong ?

Thanks & Regards,
Uva

[Uva@90]

Hi All,

Evidence about the activities of the Maya has been gathered through archeological excavations although they may never be completely authenticated because of difficulties in applying carbon dating tests to the fragile remains of the ancient civilization.

A. Maya has been gathered through archeological excavations although they

B. Maya, gathered through archeological excavations, but it

C. Maya has been gathered through archeological excavations but

D. Maya, although gathered through archeological excavations, it

E. Maya has been gathered through archeological excavations, which

OA: C

Why E is wrong ?

Thanks & Regards,
Uva

Does 'Which' modifies 'Excavation' but instead it should modify the 'Evidence' ?

Am I correct ?

Regards,
Uva

[kutlee]

Evidence about the activities of the Maya has been gathered through archeological excavations although they may never be completely authenticated because of difficulties in applying carbon dating tests to the fragile remains of the ancient civilization.

A. Maya has been gathered through archeological excavations although they
Here they refers to excavations. Evidence is what needs to be authenticated.

B. Maya, gathered through archeological excavations, but it
Here Evidence about the activities of the Maya becomes a fragment.

C. Maya has been gathered through archeological excavations but
Correct. Really long sentence. Difficult to identify as the correct choice.

D. Maya, although gathered through archeological excavations, it
Same as B. Here Evidence about the activities of the Maya becomes a fragment.

E. Maya has been gathered through archeological excavations, which
Which refers to excavations
Mitch has given very good explanation about Which usage -
https://www.beatthegmat.com/usage-of-which-t283272.html

[Spencer@Prep4GMAT]

Hi All,

Evidence about the activities of the Maya has been gathered through archeological excavations although they may never be completely authenticated because of difficulties in applying carbon dating tests to the fragile remains of the ancient civilization.

A. Maya has been gathered through archeological excavations although they

B. Maya, gathered through archeological excavations, but it

C. Maya has been gathered through archeological excavations but

D. Maya, although gathered through archeological excavations, it

E. Maya has been gathered through archeological excavations, which

OA: C

Why E is wrong ?

Thanks & Regards,
Uva

Does 'Which' modifies 'Excavation' but instead it should modify the 'Evidence' ?

Am I correct ?

Regards,
Uva

Yes Uva, that's exactly right. "Which" is used in (E) as a relative pronoun, and refers to what comes just before the "which." In this case, as you observed, that's "excavations," while the meaning of the sentence is that the "evidence" may never be completely authenticated.