Correct Answer: The little boy said that his cat could climb the tree.

Solution : The correct choice is the third option .

Indirect speech involves converting direct speech (spoken words) into indirect speech (reported words).

Narration Conversion:

• The reporting verb "said" remains unchanged.
• The possessive pronoun "my" changes to "his" to reflect the shift from the little boy's perspective to the third person.
• The verb "can" changes to its past tense form "could" to maintain the proper sequence of tenses in indirect speech.
• The connector "that" is used to introduce the reported clause.

Therefore, the correct sentence is: " The little boy said that his cat could climb the tree."