Which of the following sentences is written in the active voice

None.

I saw a squirrel chasing its tail in the park.

To determine whether a sentence is written in the active voice, we need to check if the subject of the sentence performs the action. The active voice emphasizes who or what is performing the action. Here are the sentences to consider:

1. The book was written by Jane.
2. The cake was baked by Peter.
3. The car was washed by Tim.

Out of these sentences, the one written in the active voice is:

2. The cake was baked by Peter.

In this sentence, "Peter" is the subject who performs the action of baking the cake.

To determine which of the given sentences is written in the active voice, it's important to understand the difference between active and passive voice.

In the active voice, the subject of the sentence performs the action, while in the passive voice, the subject receives the action.

Let's examine the given sentences to identify the active voice:

1. "The cat chased the mouse." - This sentence is in the active voice. The subject of the sentence (the cat) performs the action (chased) on the object (the mouse).

2. "The wallet was found in the park." - This sentence is in the passive voice. The subject of the sentence (the wallet) receives the action (was found).

Based on the analysis, the sentence "The cat chased the mouse" is written in the active voice.