As an example of rational behavior, drug dealers approach their profession in a(n) fashion

i would say b. research typically uses a variety of sources

the answer is: c. c.it limited the president’s power to start wars.

the war powers resolution of 1973 requires the president to notify the congress whenever the president wanted to order a military operation to other countries within 48 hours. if after being reviewed the congress disagree with the proposal, that the president will be banned from ordering the operation.