WILL GIVE 75 POINTS IF ANYONE CAN HELP, PLEASE !!!!!!!!!

A "Big Year" is a year in which a person attempts to see as many different species of birds as possible within a particular region. For most in North America who participate in a "Big Year," this region is the lower 48 American states, plus Alaska, Canada, and a couple of French islands off the Canadian coast.

What is the purpose of the third paragraph?

A To argue birders are amazing competitors

B To create a sense of where birders must travel

C To define the purpose and limits of a Big Year

D To suggest birders should be admired for their knowledge