Led by the secretary of state, the department of state is charged with

a. protecting citizens against foreign and domestic terror threats

b. maintaining military equipment and facilities for us military bases all over the world

c. managing our country's finances and overseeing the credit and recovery industry

d. fostering positive relationships with other countries while promoting american ideals

Option A, protecting citizens against foreign and domestic terror threats , is the right answer.

Explanation:

Established in the year 1789, the Department of State is the federal executive department of the United States. This department is chargeable for carrying out foreign policy and international relations of the United States. The main duties of this department are to give advice to the U.S. President, managing the diplomatic missions of the nation, negotiating treaties and conventions with foreign nations, and representing the United States at the U.N.

In this way, this department is charged with protecting citizens against foreign and domestic terror threats.