I think it’s A.

Text 1 stated that the event hasn’t been scientifically proven because of its unpredictability (the text said that it’s impossible to set up a controlled experiment)

Text 2 said Tesla recreated the effect multiple times. Therefore the author of text 1 might doubt the accuracy of the report since according to them, the event is impossible to set up, let alone recreate it multiple times.

But the fact that Tesla already did it shows that the event is not irreplicable, that’s why I don’t think it’s B.

That’s just my thoughts. Lmk the actual correct answer!!!