Select the option that expresses the given sentence in indirect speech.
He said, "I was watching an intriguing documentary on television last night."
1
He said that he had been watching an intriguing documentary on television the previous night.
2
He said that he has been watching an intriguing documentary on television the previous night.
3
He said that he had watched an intriguing documentary on television the previous night.
4
He said that he was watching an intriguing documentary on television the previous night.