Expenditures on infrastructure development in Arunachal Pradesh focus on:

The correct answer is: d) All of the above

Expenditures on infrastructure development in Arunachal Pradesh focus on roads and bridges, power generation and transmission, water supply and sanitation.

• Roads and bridges: The state government has been focusing on improving the road network in the state. In the last few years, the government has constructed several new roads and bridges, and has also upgraded existing ones. This has helped to improve connectivity between different parts of the state, and has also made it easier for people to access essential services.
• Power generation and transmission: The state government has also been focusing on improving the power supply in the state. In the last few years, the government has commissioned several new power projects, and has also upgraded the transmission network. This has helped to improve the power supply in the state, and has also made it easier for businesses to operate.
• Water supply and sanitation: The state government has also been focusing on improving the water supply and sanitation in the state. In the last few years, the government has constructed several new water supply schemes, and has also upgraded existing ones. This has helped to improve the water supply in the state, and has also helped to reduce the incidence of waterborne diseases.

These are just some of the areas where the state government has been focusing on infrastructure development. The government has also been focusing on other areas, such as education, health, and agriculture. These investments in infrastructure are helping to improve the quality of life for the people of Arunachal Pradesh.