Which sentence is in active voice?

Question

Jimmy ate all the pies that were at the contest.
The contest was held in a park near Jimmy's house.
The pues were brought to the contest that morning.
All the pies were eaten at the contest.

Answer 1

The sentence in active voice is: "Jimmy ate all the pies that were at the contest."

In this sentence, the subject (Jimmy) performs the action (ate) directly. The other sentences are in passive voice, where the action is performed on the subject.