Question

Which of the following prefixes means "two"?
(A) De-
(B) Bo-
(C) In-
(D) BI-

Answer 1

The answer is D.) Bi-

as in 'bi'cycle

Answer 2

The prefix BI- means "two". Think of the word bicycle for example. It has two wheels. Or the word bisexual. It means being attracted to two genders.