In the following question, four alternatives are given for the idiom/phrase in bold and italics in the sentence. Choose the alternative which best expresses the meaning of idiom/phrase.

He is always standing up for the weak and oppressed.

A.

Boosting the claims of

B.

Championing the cause of

C.

Seeking help of others for

D.

Moving about with

Correct answer is B

No explanation has been provided for this answer.