Select the option that expresses the given sentence in indirect speech.

He said, “My dog died on a cold night”.

He said his dog had died on a cold night.

The most appropriate option to express the given sentence in indirect speech is:

He said that his dog had died on a cold night.

The other options are incorrect:

• He said my dog died on a cold night. - This is incorrect because the pronoun "my" refers to the listener's dog, not the speaker's dog.
• He said his dog was dead on a cold night. - This is incorrect because the verb "was" is in the present tense, but the reporting verb "said" is in the past tense.
• He said his dog died on a cold night. - This is incorrect because the verb "died" is in the simple past tense, but the reporting verb "said" is in the past tense.