Sentence Correction

In the face of widespread concern about environmental waste, compact disc manufacturers are attempting to find a replacement for the disposable plastic box in which they package their product.

(A) the disposable plastic box in which they
(B) the disposable plastic box where they
(C) a disposable plastic box in which to
(D) disposable plastic boxes inside which they
(E) the disposable plastic boxes in which to

OA - A
My choice - E

jangojess wrote:In the face of widespread concern about environmental waste, compact disc manufacturers are attempting to find a replacement for the disposable plastic box in which they package their product.

(A) the disposable plastic box in which they
(B) the disposable plastic box where they
(C) a disposable plastic box in which to
(D) disposable plastic boxes inside which they
(E) the disposable plastic boxes in which to

OA - A
My choice - E

D, E are wrong because of singular/plural mismatches. C is wrong because it implies that the whole industry is looking for a single plastic box. B is wrong because it implies the location where the CDs are manufactured

doesnt they package prod sound awkward????

This problem has been discussed earlier: https://www.beatthegmat.com/viewtopic.php?t=2242

I hope thread starter would check this sticky thread
( https://www.beatthegmat.com/viewtopic.php?t=1461 ) next time onwards before starting a new topic related to 1000 SC.

Thank you.