Select the option that expresses the given sentence in direct speech.…

The correct answer is Option (1) → The swimming instructor said to Tanu, “Are you afraid of deep water?”

Changing a question from indirect back into direct speech:

Change	Indirect	Direct	Why
Reporting verb	asked Tanu	said to Tanu	“Asked” goes back to “said to” before the spoken words.
Joining word	if	“ ” (quotation marks)	“If” is dropped. The spoken question goes inside quotation marks and ends with a question mark.
Word order	she was	Are you	A spoken yes/no question puts the verb before the subject. So “she was” becomes “Are you”.
Pronoun change	she	you	The instructor speaks to Tanu, so “she” becomes “you”.
Tense change	was	are	“Was” came only from the past “asked”. Going back, it returns to the simple present. The verb “be” in the simple present is am / is / are. With “you” it is “are”.
Full sentence	The swimming instructor asked Tanu if she was afraid of deep water.	The swimming instructor said to Tanu, “Are you afraid of deep water?”

“If he had” + past participle (V3) goes back to “Have you” + V3 in the same way. Example: Mira asked Sam if he had eaten. → “Have you eaten?” Mira said to Sam.

Why the Other Options are Incorrect?

Option 2: The swimming instructor said to Tanu, “Do you afraid of deep water?” — Incorrect. “Do you afraid” is wrong. “Afraid” is not a verb, so the question needs “are”: “Are you afraid?”

Option 3: The swimming instructor said to Tanu, “If you are afraid of deep water?” — Incorrect. “If” is kept inside the quotation marks. A spoken yes/no question begins with the helping verb: “Are you”.

Option 4: The swimming instructor said to Tanu, “Is she afraid of deep water?” — Incorrect. The pronoun “she” is not changed. The instructor is speaking to Tanu, so it must be “you”.