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D
Solution:
D. Monsoon
A monsoon is a seasonal wind that brings a significant amount of moisture from the sea to the land, leading to heavy rainfall. Monsoons occur due to the differential heating of the land and sea, which creates pressure differences that drive the wind. In many regions, particularly in South Asia, the summer monsoon is characterized by moist winds blowing from the Indian Ocean towards the land, causing the rainy season. This is essential for agriculture and the overall climate of the region. Unlike a breeze, which is generally a gentle wind, or a strong wind, which refers to high wind speed without necessarily carrying moisture, a monsoon specifically denotes a seasonal pattern with significant rainfall. Humid refers to the presence of moisture in the air but does not describe the wind itself.