Why Does the Process of Deep Coalescence Result in Incomplete

Multiple Choice

Why does the process of deep coalescence result in incomplete lineage sorting?

A) The coalescent event between alleles results in incomplete separation of the lineages.
B) The coalescent event between alleles predates the speciation event separating the lineages.
C) The coalescent event between alleles occurs simultaneously with the separation of the lineages.
D) The coalescent event between alleles postdates the speciation event separating the lineages.