Detailed Explanation:

❌ Option A – Incorrect: The Abyssinian Plateau is located in Ethiopia (Horn of Africa), not Arabia.
✅ Option B – Correct: The Atlas Mountains stretch approximately 2,500 km through Morocco, Algeria, and Tunisia in North-Western Africa, with the highest peak Toubkal (4,167 m).
❌ Option C – Incorrect: The Guiana Highlands are located in northern South America (Venezuela, Guyana, Suriname, Brazil), not South-Western Africa.
❌ Option D – Incorrect: The Okavango Basin/Delta is in Botswana (Southern Africa), not Patagonia (which is in southern South America).