Select the most appropriate indirect form of the given sentence.
“We will wait for you if you are late,” they said to me on the telephone.

Correct option is B

The correct indirect speech is (b) They told me on the telephone that they would wait for me if I was late.
Explanation of the rule:
When changing from direct to indirect speech:
· The reporting verb "said to" becomes "told" (as the object 'me' is present).
· The tense of the reported speech changes: “will” becomes “would”, and “are” becomes “was” (backshifting to past tense).
· Personal pronouns are changed accordingly: we → they, you → me.
Structure:
Direct Speech:
Subject + said to + object + “will/shall + verb” →
Indirect Speech:
Subject + told + object + that + would/should + verb
Example:
Direct: She said to him, “I will help you if you are in trouble.”
Indirect: She told him that she would help him if he was in trouble.
Information Booster:
In Type 1 conditional sentences in reported speech, "if + present" usually changes to "if + past" (unless the situation is still valid).
Why other options are incorrect:
· (a) “if I am late” – incorrect tense; should be backshifted to "was."
· (c) "we will wait..." – incorrect as pronouns and tenses are not changed.
· (d) "will" should change to "would"; also "you were late" is grammatically awkward.