Sentence Correction

However much United States voters may agree that
there is waste in government and that the government
as a whole spends beyond its means, it is diffi cult to
fi nd broad support for a movement toward a minimal
state.
(A) However much United States voters may
agree that
(B) Despite the agreement among United States
voters to the fact
(C) Although United States voters agree
(D) Even though United States voters may agree
(E) There is agreement among United States
voters thaT

OA is A
but I have so many questions
A the use of much normally is for uncountable nouns which isn't the case for the "voters "
B despite blablala to the fact blablala is undiomatic
C out because the agreement among them to the fact is undiomatic
E run on sentence
I'm left with B and C and that I considered as gramatically correct ( I know agree is a reporting verb but according to the idiom section of the Manhattan SC agree without that is suspect not wrong)
so I picked D because it displayed some uncertainity.
I know this isn't the right answer so any hint will be highly appreciated