Answer:
neither A nor B
Explanation:
There are a lot of reasons, quite handful of them. About why scientists repeat experiments.
They do so sometimes to persistently verify the results they have gotten. Another reason is so as to be able to study and improve them in other ways.
This is just 2 of the very many reasons why scientists repeat experiments. Remember the popular saying, that practice makes perfect? yeah, that's just it
I hope you understand. Thanks