Change the Narration, He said, “I will return soon.”

The correct answer is B: He said that he would return soon. This question tests your ability to convert direct speech into reported (or indirect) speech. When reporting what someone said in the past, several grammatical changes typically occur.

• The reporting verb "said" indicates that the original statement was made in the past.
• The pronoun "I" in direct speech changes to "he" in reported speech to reflect the speaker of the original statement.
• The modal verb "will" in direct speech typically changes to its past form, "would," in reported speech when the reporting verb is in the past tense. This is known as 'backshifting' of tenses.
• The conjunction "that" is often used to introduce the reported statement, though it is sometimes optional.

Options A, C, and D are incorrect because they fail to apply the necessary tense shift from "will" to "would" or incorrectly change the reporting verb's tense or the pronoun agreement. Therefore, "He said that he would return soon" is the grammatically correct reported speech form.