Simplify: √ab^4 √b^6

Question

Choices:

(A) √ab²⁰

(B) ab^{2 3}√b

(C) b²√a ³√b

(D) b√a

(E) none of these

Answer 1

None of these

although the square root sign is ambiguous as to how much it covers, now matter how much it covers, it doesn't fit any of the answers.