Correct Answer: Nobody has brought this fact to my notice.

Solution : The correct choice is the second option.

Explanation: Active voice refers to a sentence construction where the subject performs the action stated by the verb. In simpler terms, the subject acts upon the verb's action. It often makes the sentence clearer, more direct, and easier to understand because it highlights who or what is acting.

The structure of the active voice sentence in the case of the present perfect tense is, subject (nobody) + has + past participle of the main verb (brought) + object (this fact) + prepositional phrase (to my notice).

Therefore, the correct answer is: Nobody has brought this fact to my notice.