"Populalfoo refers to the total number people living in certain area at a
specific time. explain

Population has to do with the totality of all living species that are inhabited in a particular place (meaning the location of the species at the moment) and at a particular point in time (time consideration is important because there are certain factors which can initiate the migration of species for instance weather factor, search for food etc )

Explanation:

In biology, populace is the relative multitude of living beings of similar gathering or species who live in a specific geological territory and are fit for interbreeding.

The territory of a sexual populace is where between reproducing is conceivable between any pair inside the region and more plausible than cross rearing with people from different regions.

In sociology, populace alludes to an assortment of people. Demography is a sociology which involves the measurable investigation of populaces. Populace, in more straightforward terms, is the quantity of individuals in a city or town, area, nation or world; populace is generally controlled by a cycle called enumeration (a cycle of gathering, dissecting, incorporating and distributing information).

d would be your answer