The National Guard can be () when necessary.

• A. Called Up
• B. Activated
• C. Deployed
• D. Mobilized

Answer: (A)

The main idea here is the everyday phrase used to summon National Guard units for service. When the Guard is needed, officials say they will be called up to duty. This wording is standard and neutral, signaling that the Guard is being brought into active status without specifying how far they’ll go or what kind of duty they’ll perform.

Activated would carry a more formal meaning of federal activation for active duty, which is not always the case in routine emergencies. Mobilized suggests assembling and moving troops for a larger operation, and deployed focuses on where troops are sent, not on the act of being summoned. So, called up best fits the idea of bringing the National Guard into service when needed.