What is the evolutionary relationship between a human arm and a cat's forelimb?

A) They are vestigial structures.
B) They are divergent structures.
C) They are homozygous structures.
D) They are homologous structures.
E) They are homoplastic structures.

Homologous Structures

Anatomical features in different species that arise from a common ancestor, showing evolutionary relationships despite their possible different functions.

Evolutionary Relationship

The connection and lineage between species or groups of organisms based on their shared genetic heritage and evolutionary history.