question about 885-243

ninishine

243.    In one of the most stunning reversals in the history of marketing, the Coca-Cola company in July 1985 yielded to thousands of irate consumers demanding that it should bring back the original Coke formula.
(A) demanding that it should
(B) demanding it to
(C) and their demand to
(D) who demanded that it
(E) who demanded it to

The correct answer is D. I think D is correct, but I still don't know why B is wrong.
Please help me, thanks.

braveMBA

'demand sb/sth to do sth ' is unidiomatic.