She must attend . . . . . . . . the lecture.

A. to

B. in

C. on

D. with

Answer: Option A

Solution(By Examveda Team)

When you use attend as 'pay attention' or 'take care of,' it's followed by 'to'. When you use attend as in 'attend a party,' you don't use 'to'. If you attend a political rally, you'll want to attend to what the politicians have to say.