Compare Mackinder's Heartland Theory and Spykman's Rimland Theory in one sentence each.

• A. Rimland Theory emphasizes the inland heart of Eurasia; Heartland Theory emphasizes control of the coastal rim and sea gates.
• B. Heartland Theory emphasizes control of the Eurasian interior; Rimland Theory emphasizes control of the coastal rim and sea gates around Eurasia.
• C. Both theories prioritize naval power exclusively.
• D. Both theories reject any form of sea power in strategy.

Answer: (B)

These theories map where geopolitical power is built: Mackinder’s idea centers on controlling the Eurasian interior, while Spykman’s idea centers on controlling the coastal rim and its sea gates around Eurasia. The correct answer captures this by stating that the Heartland emphasizes the Eurasian interior, and the Rimland emphasizes the coastal rim and sea gates around Eurasia. The other options misstate the emphasis or rely on a false claim about power being naval-focused or rejecting sea power altogether, which doesn’t fit the way these theories explain how power is projected and balanced across land and sea.