The correct answer is C) Western regions.
The western regions of Madhya Pradesh are the most drought-prone areas of the state. This is due to a number of factors, including the low rainfall in the region, the high temperatures, and the poor soil quality. The low rainfall in the western regions of Madhya Pradesh is due to the fact that the region is located in the rain shadow of the Vindhya Mountains. The Vindhya Mountains block the moisture-laden winds from the Arabian Sea, which means that the western regions of Madhya Pradesh receive very little rainfall. The high temperatures in the western regions of Madhya Pradesh are also a major factor in the drought-prone nature of the region. The average temperature in the western regions of Madhya Pradesh is around 35 degrees Celsius, which is much higher than the average temperature in the rest of the state. The high temperatures in the western regions of Madhya Pradesh lead to high evaporation rates, which further reduces the amount of rainfall in the region. The poor soil quality in the western regions of Madhya Pradesh is also a major factor in the drought-prone nature of the region. The soil in the western regions of Madhya Pradesh is mostly sandy, which means that it does not hold water very well. This means that when it does rain in the western regions of Madhya Pradesh, the water quickly runs off the land and does not have a chance to soak into the soil. As a result of all of these factors, the western regions of Madhya Pradesh are the most drought-prone areas of Madhya Pradesh.