Got answer BUT confused by OG explanation

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Got answer BUT confused by OG explanation

by vikram4689 » Sun Jan 22, 2012 2:11 am
Unlike the original National Museum of Science and Technology in Italy, where the models are encased in glass or operated only by staff members, the Virtual Leonardo Project, an online version of the museum, encourages visitors to "touch" each exhibit, which thereby activates the animated functions of the piece.
(A) exhibit, which thereby activates
(B) exhibit, in turn an activation of
(C) exhibit, and it will activate
(D) exhibit and thereby activate
(E) exhibit which, as a result, activates

I got the answer but was confused by OG explantion, OG says 'it' and 'which' in choices have NO ANTECEDENT whereas i thought 'it' and 'which' refer to wrong intecedent
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by nileshdalvi » Sun Jan 22, 2012 3:27 am
We do not know who activates, maybe some mechanism which is not mentioned in the sentence. Hence, no clear antecedent.

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by lunarpower » Thu Jan 26, 2012 4:05 am
vikram4689 wrote:I got the answer but was confused by OG explantion, OG says 'it' and 'which' in choices have NO ANTECEDENT whereas i thought 'it' and 'which' refer to wrong intecedent
two ways of saying the same thing.
in the OG's way of thinking, you don't say that a pronoun "has an antecedent" unless it actually has the correct antecedent.

analogy:
let's say that i'm invited to a very formal party, but i don't have any suits or tuxedos. in that case, i can say "i don't have anything to wear"; you can say "i don't have any proper clothes".
both of these would convey the same message; i am obviously not saying that i don't own any clothes at all.
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by ArunangsuSahu » Thu Jan 26, 2012 9:49 am
(D)first touch and then activate(through touch)...correct diction

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by Sharma_Gaurav » Fri Jan 27, 2012 11:55 am
it and which , don't seem to refer to anything.

So option D is the most suitable one. and is the correct answer.

each exhibit to" touch "and thereby" activate "