Concept:Rainfall requires moist air to rise, cool, and condense. In Rajasthan, the winds lack a barrier to force this uplift.
Explanation:The Arabian Sea branch of the monsoon flows parallel to the Aravalli Range, so it does not rise over the hills.
The Bay of Bengal branch loses most of its moisture before reaching Rajasthan.
Without a mountain barrier, the winds remain at low altitude and do not cool enough to form clouds.
This lack of uplift prevents rainfall, making Rajasthan dry.
Answer:The winds do not come across any barriers to cause the necessary uplift to cool the air (Option C).