Let's think step by step! For animals, displays of color can be viewed as:
Options:
- (A) spectrum
- (B) prudishness
- (C) rainbow
- (D) courtship
- (E) positive
- (F) harm them
- (G) produce light
- (H) Movement
The thinking starts now:
Courtship is behavior that is intended to attract a mate. Almost all animals display colors to attract a mate or to scare off a predator. Courtship can be manifested by displays of color. The final answer: (D).