The correct answer is option 1: West Africa. The TEAM-9 initiative is a techno-economic cooperation venture between India and eight countries in West Africa. This initiative aims to strengthen the economic and technological collaboration between India and these West African countries.

It is important to note that the answer provided is generally correct, but there may be other collaborations or initiatives between India and other regions of Africa. However, for the given question, the correct answer specifically refers to West Africa.

Option 2, East Africa, is not the correct answer. Although India has partnerships and collaborations with countries in East Africa, the TEAM-9 initiative specifically focuses on West Africa.

Option 3, North Africa, is also not the correct answer. Similarly, while India may have cooperative relationships with countries in North Africa, the TEAM-9 initiative does not include these countries.

Option 4, Central Africa, is not the correct answer either. The TEAM-9 initiative does not involve collaboration with countries in Central Africa.

In conclusion, the correct answer for the TEAM-9 initiative is West Africa, as it represents the eight countries with which India has established a techno-economic cooperation venture.