A brigade is composed of several battalions.

• A. Brigade
• B. Infantry
• C. Armor Tracked
• D. Air Defense

Answer: (A)

The structure being tested is how military units are organized in increasing size. A battalion is a mid-sized unit, while a brigade is formed by combining several battalions along with its own support elements. So describing a brigade as being made up of multiple battalions reflects its place in the hierarchy: brigades are the formations that consist of several battalions.

The other terms point to types or roles of forces rather than to a unit defined by containing multiple battalions. Infantry, armor (tracked), and air defense refer to the kind of forces or their mission, not to the organizational level that groups several battalions together.