There are $3$ ecological communities, each with differing species, but all of them have $110$ individual plants and animals.$$

Community A has $21$ species. Of the $110$ individuals, there are $50$ individuals of one species and $3$ each of the other $20$ species.$$

Community B has $11$ species. Of the $110$ individuals, there $90$ individuals of one species and $2$ each of the other $10$ species.$$

Community C has $11$ species. Of the $110$ individuals, there are $10$ individuals of each species.$$

Question $9$ options:

A$)$

In this scenario, community C has the highest species richness

B$)$

In this scenario, community B has the highest species richness

C$)$

In this scenario, community A has the highest species richness