Assertion: Total number is an easily adoptable measure if the populations is huge and counting is impossible or very time consuming.
Reason: In a dense laboratory culture of bacteria in a petri dish the best measures to report its density is number or biomass.
A. If both assertion and reason are true and the reason is the correct explanation of the assertion.
B. If both assertion and reason are true but reason is not the correct explanation of the assertion.
C. If assertion is true but reason is false.
D. If both assertion and reason are false.