25. Which sentence contains a singular subject?

O Any of those ideas sounds good to me.

Both Jerry and his sister attended the meeting.

Several in the audience gave the actors a standing ovation.

The deer entered the forest at the same place they had come out.

The deer entered the forest at the same place they had come out.

Explanation:

The deer is the only subject here, and therefore it's a singular subject. The other options have more than one subjects also called plural subjects. This chosen option has only one subject which is the deer therefore its singular.