The correct answer is option 1: Environmentalist and Social Activist.

Chandi Prasad Bhatt is a renowned figure known for his contributions in the environmental and social activism fields. He has dedicated his life to conservation efforts and raising awareness about the importance of environmental sustainability.

Bhatt is a co-founder of the Chipko movement, which originated in the 1970s in Uttarakhand, India. This movement involved local communities, particularly women, hugging trees to prevent them from being cut down. The movement was a significant step towards environmental protection and created awareness about the need for sustainable development.

In addition to his environmental activism, Bhatt has also contributed to social causes. He has advocated for the rights of marginalized communities, particularly forest dwellers and farmers. His work has focused on empowering these communities and promoting sustainable livelihoods.

While Bhatt`s contributions to environmentalism and social activism are well-known, there is no evidence to suggest that he is an economist, writer, painter, or a classical Hindustani vocalist.

Alert - correct answer should be: Environmentalist and Social Activist.