Which sentence is written in the active voice?

The students voted for class president.
The votes were counted by the students after school.
The ballot boxes were picked up by the teachers.
The results of the vote were announced by the principal.

Question

Which sentence is written in the active voice? 

 	
	The students voted for class president.
	The votes were counted by the students after school.
	The ballot boxes were picked up by the teachers.
	The results of the vote were announced by the principal.

ltrout · Answer

This belongs in the English section, but which one is having the subject do the action rather than the action being acted onto the subject? If that makes any sense. I go to the store is active because the subject is doing the action, while the money was given to the school is passive since the subject isn't doing the action. With those answers I would go with A.