Sentence Correction

Archaeologists in Ireland believe that a recently discovered chalice, which dates from the eighth century, was probably buried to keep from being stolen by invaders.
(A) to keep from
(B) to keep it from
(C) to avoid
(D) in order that it would avoid
(E) in order to keep from


Pls suggest the answer.



Art museums do not usually think of their collections as capital or consider the interest income that would be generated if a portion of the capital would have been invested in another form.
(A) be generated if a portion of the capital would have been
(B) have been generated if a portion of the capital would have been
(C) be generated if a portion of the capital were
(D) be generated if a portion of the capital was
(E) be generated if a portion of the capital had been

Confused b/w A & C.