Question

Which of the following sentences uses active voice?

A- Older police officers patrolled the parking lot.

B- The parking lot was patrolled by older police officers.

C- Older police officers were patrolling the parking lot.

D- The parking lot was being patrolled by older police officers.

Answer 1

If the subject does or "acts upon" the verb in sentences, the sentences are said to be in the active voice.

So both A and C depict the use of the active voice.