Answer: I believe the answer is B. the Sahel
Explanation:
"The Sahel is the ecoclimatic and biogeographic zone of transition in Africa between the Sahara to the north and the Sudanian Savanna to the south"(The Conversation).
The circled area acts as a boundary between what would be the Sahara desert above it so I would go with B.
Answer:
forest
Explanation:
because there are more trees