They are headquarters of governments and are usually capital cities. This best describes

Step 1: Analyze the question The question describes towns that are the "headquarters of governments" and are "usually capital cities." We need to match this function to the correct type of settlement.

Step 2: Explain the concept In Geography (Settlements), towns are classified by their main function:

• Market towns: Centres for trading and exchanging goods, usually in farming areas (e.g., Onitsha, Kano's Kurmi market area).
• Administrative towns: Seats of government, where political and administrative offices are located (e.g., Abuja, Lagos State's Ikeja, Ibadan, Kaduna).
• Educational towns: Grew around universities or schools (e.g., Zaria, Nsukka, Ile-Ife).
• Mining towns: Developed because of mineral extraction (e.g., Jos for tin, Enugu for coal, Warri/Port Harcourt for oil).

Step 3: Solve

• The key phrases are "headquarters of governments" and "capital cities."
• Market towns focus on trade, so A does not fit.
• Educational towns focus on schools and universities, so C does not fit.
• Mining towns depend on minerals, so D does not fit.
• Only administrative towns are defined by housing government headquarters, such as national, state, or local government capitals.

Step 4: Answer The correct option is B. Administrative towns.

Step 5: Exam tip Link each town type to its keyword:

• Government/capital → Administrative
• Trade → Market
• Schools → Educational
• Minerals → Mining

When the question mentions "headquarters" or "capital," think "administrative."