Which of the following countries are well known as the two largest cocoa producers in the world?

Answer: C. Côte d'Ivoire and Ghana are the world's two largest cocoa producers. Côte d'Ivoire alone produces about 40% of global cocoa, and Ghana about 20% — together over 60% of world output. The cocoa belt lies in West Africa within ~10° of the equator, where high humidity and steady temperatures suit Theobroma cacao. The other options name regions that produce little or no cocoa: Algeria/Morocco (Mediterranean climate), Botswana/Namibia (semi-arid), Madagascar/Mozambique (modest cocoa production but not top-two). Source: ICCO (International Cocoa Organisation) production statistics.