A question about stroma

[Maatomaat]

Can anyone help me to solve this question?
-if we sever stroma from a plant cell,(with the assumption that acidic environment will not botch the stroma) then enter it to an acidic solution(ph=4) and then enter it to a basic solution(ph=8) .what may be happened?
1)it will not be able to make ATP even in a black environment.
2)it just will be able to make ATP in a light environment.
3)kalvin circle will not be processed but other interactions will be processed.
4)ATP generation will not be processed but NADPH+H+ generation will be processed.
(THIRD IRAN BIOLOGY OLYMPIAD)