178,求救~~~~~~

Eileenl

178.  In the last few years, the number of convicted criminals given community service sentences, which allow the criminals to remain unconfined while they perform specific jobs benefiting the public, have risen dramatically.

(A) sentences, which allow the criminals to remain unconfined while they perform specific jobs benefiting the public, have
(B) sentences, performing specific jobs that benefit the public while being allowed to remain unconfined, have
(C) sentences, performing specific jobs beneficial to the public while they are allowed to remain unconfined, have
(D) sentences which allow them to remain unconfined in their performing of specific jobs beneficial to the public has（E）
(E) sentences allowing them to remain unconfined while performing specific jobs that benefit the public has
   弱弱地问一下the number of convicted criminals given community service sentences主语是THE number 还是sentences?为什么答案是has?

qingbo

主语是the number