Correct option is D
The correct indirect form of "I said to him, 'Please stay here tonight'" is "I requested him to stay there that night."
· This maintains the polite request and changes 'here' to 'there' to reflect the indirect speech.
· Indirect Speech is supported by some verbs like requested, ordered, suggested and advised. Forbid-forbade is used for negative sentences.
· Therefore,
the imperative mood in the direct speech changes into the Infinitive in indirect speech.