Select the option that expresses the given sentence in active voice.
Some students are known to grow wise early.

Correct option is B

The correct active voice of the given sentence is (b) People know that some students grow wise early.
Explanation:
· The given sentence is in passive voice (Present Simple Passive with Infinitive).
· The structure of such sentences:
· Passive: Subject + am/is/are + known/believed/said + to + base verb + object.
· Active: People/They say/believe/know + that + subject + verb + object.
· In the sentence, “Some students are known” (passive) changes to “People know that some students” (active).
· The verb remains unchanged in tense.
Example:
Passive: The book is believed to be very interesting.
Active: People believe that the book is very interesting.