One way a lincoln-douglas debate differs from a policy debate is that in a lincoln-douglas debate,

a. two individuals compete, whereas in a policy debate, teams of two compete.

b. teams of two compete, whereas in a policy debate, two individuals compete.

c. competitors gather evidence from research throughout the year, whereas in a policy debate, competitors learn the topic shortly before the debate.

d. competitors learn the topic shortly before the debate, whereas in a policy debate, competitors gather evidence from research throughout the year.