Select the option that expresses the given sentence in Direct to Indirect Speech,
They said, "How foolish of him to say that!"

Correct option is B

The correct indirect speech is They exclaimed that it had been very foolish of him to say that.
Rules of conversion (exclamations → reported speech):
· Replace the reporting verb said with exclaimed for an exclamatory sentence.
· Remove quotation marks and the exclamation mark; use a that-clause.
· Change interjectional/exclamatory pattern ( How foolish of him!) to a statement ( that it was/had been very foolish of him).
· Apply backshift because the reporting verb is in the past: present/“is” → was/ had been. Since the comment refers to a completed situation at the time of speaking, had been is acceptable and matches the option.
· Adjust pronouns and deictics as needed; here, him and that already fit.
· Why others are wrong:
· (a) They exclaimed how foolish… → lacks a that-clause and remains exclamatory/ill-formed.
· (c) …that he is very foolish… → no backshift ( is → * was/had been). Also keeps the exclamatory tone with “!”.
· (d) Uses said, not exclaimed; weaker reporting for an exclamation and misses the nuance.