In the following questions, in the given sentences, a part of the sentence is underlined. Beneath each sentence, four different ways of phrasing the underlined part are indicated. Choose the best alternative.

Bad habits must be nipped at the bud .

A. nipped off the bud

B. nipped in the bud

C. nipped on the bud

D. No improvement

Please do not use chat terms. Example: avoid using "grt" instead of "great".