Consider the following description of houses :

A. In Rajasthan the villagers live in mud houses with roofs of thorny bushes.

B. In Manali (Himachal Pradesh) houses are made on bamboo pillers

C. In Leh two floor houses are made of stones. The ground floor is for animals and for storing necessary things.

The correct statement(s) is/are

The correct option is A and C.

Let us analyze each statement regarding traditional houses in different regions of India to verify their correctness:

1. Statement A: "In Rajasthan the villagers live in mud houses with roofs of thorny bushes."
This statement is correct. Rajasthan experiences extremely hot weather. Mud houses keep the interiors cool, and thick walls protect against high temperatures. The roofs are constructed using thorny bushes and shrubs to adapt to the local arid environment.

2. Statement B: "In Manali (Himachal Pradesh) houses are made on bamboo pillers"
This statement is incorrect. Houses made on elevated bamboo pillars are typical of Assam, where heavy rainfall leads to frequent flooding. In Manali (a hilly region in Himachal Pradesh), houses are made of stone and wood with sloping roofs to allow snow and rain to slide off easily.

3. Statement C: "In Leh two floor houses are made of stones. The ground floor is for animals and for storing necessary things."
This statement is correct. In Leh (Ladakh), traditional houses are two-storeyed structures made of stones, mud, and lime. The ground floor generally has no windows and is dedicated to keeping livestock (animals) and storing essential winter supplies, while the family resides on the upper floor.

Therefore, statements A and C are correct, making A and C the correct answer.