The sentence in the Indirect Speech is in Past Perfect Tense.
There are three cases when the Indirect Speech is in Past Perfect Tense.
· Tense remains same
· Past perfect changes to Present Perfect
· Past perfect changes to Simple Past
Case 1: Past Perfect (Subject + had + V3 + Object) tense will be kept intact.
For example:
He said that he had just finished the movie. (Indirect Speech)
He said, "I had just finished the movie" (Direct Speech)
Case 2: Past Perfect (Subject + had + V3 +Object) will be converted into Present Perfect (Subject + has/have + V3 +Object).
For example:
He said that he had got a new job. (Indirect Speech)
He said, "I have got a new job." (Direct Speech)
Case 3: Past Perfect (Subject + had + V3 + Object) will be converted into Past Simple (Subject + V2 + Object).
For example:
He said that Arya had sent him a book. (Indirect Speech)
He said, "Arya sent me a book" (Direct Speech)
The following things in the sentence will change when changed from Indirect Speech to Direct Speech:
Here, "had been" changes to "has been".
Here, the use of "informs" in option 4 is incorrect as reporting verb should be in past tense for a past tense sentence.
So, option 1 is correct here.