Final answer:
A male turkey is called a Tom. This term is part of traditional American vocabulary and is used when discussing these birds. The male turkey's display is used to attract females and show genetic health.
Step-by-step explanation:
The correct answer to the question "What's a male turkey called?" is d) Tom. A male turkey is commonly referred to as a Tom (sometimes also called a gobbler), while the female turkey is called a hen. This terminology is especially prevalent in the United States and is part of traditional American vocabulary when referencing these birds.
It's interesting to note from the Science Friday segment titled "Hot" For Turkey that the male turkey's display, which includes fanning its tail feathers and puffing up, is a way to attract female turkeys. Females use this display to judge the male's fitness and genetic quality. This is just one example of the complex behaviors and social structures that exist in the animal kingdom.