3. Students need to learn tips on how to _____ a bully and help someone who is bullied.
(A) stand up with
(B) stand up to
(C) stand by
(D) stand up for

(A) stand up with 當....儐相(To act as best man or maid of honor for (the groom or bride) at a wedding.)

I agreed to stand up with my buddy at his wedding.

Tom stood up with Harry when the latter got married.

(B) stand up to (sth.) 經得起，承受得住 (動詞片語)

Will the lorries stand up to the journey over rough roads?

(C) stand by 繼續遵守，信守（決定、協定或承諾）(動詞片語)

Despite its financial problems, the company is standing by the no-redundancy agreement.

(D) stand up for 支持，維護（想法、遭受指責或攻擊的人）(動詞片語)

It's high time we all stood up for our rights around here.