Convert the following sentence from Direct Speech to Indirect Speech. He said, "I have forgotten the combination of my safe."

He said that he had forgotten the combination of his safe. He said that the combination of the safe was forgotten by him. He had forgotten the combination of his safe. He said that I have forgotten the combination of his safe.

He said that he had forgotten the combination of his safe.

The correct answer is Option (1) - He said that he had forgotten the combination of his safe.