Answer:
Option B, the region receives high rainfall and the ground is mostly wet, is the right answer.
Step-by-step explanation:
Arunachal Pradesh is one of the Indian states. It is located in the North-Eastern part of India. The climatic conditions of Arunachal Pradesh vary with elevation, for instance, areas that are in low altitude have a humid subtropical climate and those with high and very high altitude have a subtropical highland and alpine climate. At the same time, this state of India receives 2,000 to 5,000 millimetres (79 to 197 in) rainfall. As a result of the rainfall, the ground is mostly found wet and thus the people of Arunachal Pradesh build their houses on bamboo sticks.