Concept:The major volcanic zones of Africa are associated with the East African Rift System.Explanation:1. East Africa, especially Kenya and Tanzania, contains the most prominent volcanic features in Africa.2. Examples include Mount Kilimanjaro, Mount Kenya, and other rift-valley volcanoes.3. The Maghrib, Cameroon, and Sudan/Ethiopia are also volcanic, but the greatest concentration is in Kenya and Tanzania.Answer:B. Kenya and Tanzania