Taking into account the statement above:
"The emergency operations plan is a key component of an emergency management program that:________
a. Provides standard operating procedures for responding to specific types of incidents.
b. Serves primarily as a budgeting document for acquiring emergency management resources.
c. Establishes the overall authority, roles, and functions performed during incidents
d. Is required in order for a jurisdiction to receive Federal assistance with mitigation initiatives"
The answer about that the emergency operations plan is a key component of an emergency management program is option: C. Establishes the overall authority, roles, and functions performed during incidents," because this can be applied to a wide variety of scenarios.
Hope this helps.