The correct answer is: a) Below freezing.
Arunachal Pradesh is a state in north-eastern India. It is the largest state in India by area, and it is also one of the most sparsely populated states. The climate of Arunachal Pradesh varies greatly depending on the altitude. The lower-lying areas have a tropical climate, while the higher-lying areas have a temperate climate. The average winter temperatures in Arunachal Pradesh can drop to below freezing, especially in the higher-lying areas.
Option b) is incorrect because the average winter temperatures in Arunachal Pradesh can drop to below freezing.
Option c) is incorrect because the average winter temperatures in Arunachal Pradesh can drop to below freezing.
Option d) is incorrect because the average winter temperatures in Arunachal Pradesh can drop to below freezing.