The government of Nagaland focuses on improving rural connectivity through:

Upgrading existing roads
Building suspension bridges
Promoting carpooling initiatives
Expanding public bus networks

The correct answer is: a) Upgrading existing roads.

The government of Nagaland has been focusing on improving rural connectivity through upgrading existing roads. This is because the state has a large rural population and poor road infrastructure. The government has been working to improve the quality of roads in rural areas, as well as to increase the number of roads that are accessible to the public. This has helped to improve the lives of rural residents by making it easier for them to travel and access essential services.

The other options are incorrect because they are not the main focus of the government’s efforts to improve rural connectivity. Building suspension bridges is a relatively expensive option that is not always feasible in rural areas. Promoting carpooling initiatives is a good way to reduce traffic congestion, but it does not directly improve rural connectivity. Expanding public bus networks is a good way to provide transportation to rural residents, but it does not address the issue of poor road infrastructure.

In conclusion, the government of Nagaland focuses on improving rural connectivity through upgrading existing roads. This is because the state has a large rural population and poor road infrastructure. The government has been working to improve the quality of roads in rural areas, as well as to increase the number of roads that are accessible to the public. This has helped to improve the lives of rural residents by making it easier for them to travel and access essential services.