A challenge faced by industrial development in Arunachal Pradesh is:

Lack of infrastructure
Limited connectivity
Skilled labor shortage
All of the above

The correct answer is: d) All of the above.

Arunachal Pradesh is a landlocked state in north-eastern India. It is one of the most remote and sparsely populated states in the country. The state has a number of challenges that hinder its industrial development.

One of the major challenges is the lack of infrastructure. The state has a poor road network and limited access to electricity and water. This makes it difficult for businesses to operate in the state.

Another challenge is the limited connectivity. The state is not well-connected to other parts of India. This makes it difficult for businesses to import and export goods.

The state also faces a shortage of skilled labor. There are not enough people in the state with the skills that are required by businesses. This makes it difficult for businesses to find the workers they need.

All of these challenges make it difficult for businesses to operate in Arunachal Pradesh. This has led to slow industrial development in the state.

In order to promote industrial development in Arunachal Pradesh, the government needs to address these challenges. The government needs to improve the infrastructure, connectivity, and education system in the state. This will make it easier for businesses to operate in the state and will attract more investment.