Question

which of the following molecules get recycled during photosynthesis

Answer 1

what are those molecules?

Answer 2

I think the answer's "oxygen."
Is that one of your multiple choices?

Answer 3

I agree with @InYourHead, if oxygen is one of your choices, then that's the answer!

Answer 4

Oxygen in photosynthesis comes from water, is not a recycling in terms of 'reaction'. if you guessing CO2 the recycling completes only after respiration which is not directly related to photosynthetic reaction cycle. If choices are available, may be there is a right answer

Answer 5

NADPH and ATP

CO2 and NADPH

ATP and glucose

Water and glucose

those are the choices.

Answer 6

must be NADPH and ATP