can I use simple past tense in sentences that begin with when?

Question

I am reading a test as follows:

When I got there, I found that the theatre

1. closed
2. was closed
3. has closed
4. has been closed

I know the answer should be 2 or 4. if I can consider the word "When" in the above context as a definite time (something like yesterday, two days ago and so on) then the answer can be number 2. But if the word "When" must be considered as an indefinite time then the answer should be number 4.

So the question is which option is correct? or in the other words "can I use simple past tense in sentences that begin with when?"

Answer 1

... I found that the theatre has been closed.

This is not correct. Here the verb of the Principal Clause ["found"] is in the past tense. So, as per the rules of the sequence of tense, the verb of the Subordinate Clause should be in the past tense too :

...I found that the theatre had been closed.

Or

... I found that the theatre was closed.