Which sentence is punctuated correctly?

Question

a.“Thunder is good,” said Mark Twain, “But it is lightning that does the work.”
b.“Thunder is good, said Mark Twain, but it is lightning that does the work.”
c.“Thunder is good,” said Mark Twain, “but it is lightning that does the work.”
d.“Thunder is good” said Mark Twain, “but it is lightning that does the work.

i choose B- because i don't think that the B in butt should be capitalized

Answer 1

B is not punctuated correctly.

Answer 2

is it C. why wouldn't it be B

Answer 3

It's not B because we need quotation marks before "but."

C is right.

Answer 4

you guys are all dumb but nice

Answer 5

bob, you know your stuff