Biology

The correct answer is: C.To find out who is most closely related to who.

Explanation:

DNA comparison in studying evolution is primarily used to determine the evolutionary relationships between different species. By comparing DNA sequences, scientists can assess how closely related two species are, which helps to build phylogenetic trees and understand the process of evolution over time. This is essential for understanding the ancestry and diversification of life on Earth.

Here’s why the other options don't fit:

A.To identify the closest genetic match to whales: While DNA comparison c...