In the given options, the sentence that is in active voice is:
"The cat slept peacefully on the couch."
Explanation:
1. Active voice: In an active voice sentence, the subject performs the action expressed by the verb. The subject is the doer of the action.
2. In the sentence "The cat slept peacefully on the couch," the subject "cat" is performing the action of sleeping.
3. The verb "slept" shows the action done by the subject "cat" in a straightforward and active way.
4. Therefore, this sentence is in active voice as it clearly shows the subject performing the action.
It's important to identify the active voice structure in sentences to understand who or what is performing the action.
