Correct option is A
The correct answer is option (a).
The given sentence is ‘Direct Speech’.
Direct Speech - Reporting the message of the speaker in the exact words as spoken by
him.
Indirect speech – Reporting what somebody has said, not using the actual words.
The given sentence is an ‘Imperative sentence.’ Imperative sentences are used to issue a command or instruction, make a request, or offer advice.
The sentence thus formed is – The teacher told Asif to go and wash his hands.