Honors bio will give brainliest! i picked b. but i am not sure.

question: due to a devastating forest fire, 90 percent of a bird population that nests in trees die, as shown in the diagram below.

how will this random event most likely affect the new population that survived?

a. it will increase in the size of the population.

b. it will decrease the genetic diversity of the population.

c. it will maintain the same gene frequencies seen in the original population.

d. it will increase the likelihood that individuals will survive all types of future random events.