Answer:
I believe it is C I am not 100% though sorry if its wrong
The answer is ‘As
spring progresses, move north’. Corals are known
to release their eggs and sperms in a synchronized fashion. The eggs are then
carried by an underwater ‘blizzard’ (current) that increases the chances of fertilization of the eggs by the sperms. The
underwater blizzards occur regularly in
cycles such as during lunar cycles, certain times of the year, tides
and water temperatures.
I'd say the answer to this queston is smog
