Answer:
D
Explanation:
At the very end it says how the water level has to be just so for the eggs to not dry out, but not too deep either or they cannot get sunlight
It never mentions time so it is not A or any type of fish so its not C
or time of year so its not B, leaving us with A
I really hope this helps u!
Pls give a brainliest and a thx ;)