Despite an Abundance of Habitat, Why Will It Be Difficult

Multiple Choice

Despite an abundance of habitat, why will it be difficult for the human species to recover?

A) Related humans are not able to reproduce.
B) The founder effect will slowly kill off the survivors in a small population.
C) Modern humans lack the ingenuity needed to survive without an extended social network.
D) The reduced genetic diversity will make it difficult for the population to adapt to new diseases or other environmental changes.