Answer: (a) Cameroon.
Explanation:
The Congo Basin, also known as the Congo Rainforest, is a vast expanse of tropical rainforest located in Central Africa. It is the second-largest rainforest in the world after the Amazon Rainforest.
Cameroon is a country in Central Africa and is part of the Congo Basin. It shares a border with the Democratic Republic of the Congo, which is primarily covered by the Congo Rainforest. The rainforest extends into Cameroon, covering a significant portion of its territory.
Reference source:
The information about the Congo Basin and its inclusion of Cameroon can be found in the Geography textbook "Fundamentals of Physical Geography" published by NCERT (National Council of Educational Research and Training) in India. The book is widely used for the UPSC (Union Public Service Commission) examinations and provides detailed information on various geographical topics, including the Congo Basin. You can refer to Chapter 6, "Major Landforms of the Earth," in this book for further details.
