The correct answer is (d).
Köppen’s climate classification is a system for classifying climates based on their annual and monthly mean temperature and precipitation. The system was first published by Wladimir Köppen in 1884, and has been modified several times since then.
The Köppen climate classification system uses five main climate groups: A, B, C, D, and E. Each group is further divided into subtypes, which are designated by letters and numbers.
The subtype “Aw” represents a monsoon climate with dry winter. This type of climate is characterized by a hot, wet summer and a dry, cool winter. The annual precipitation is typically between 250 and 1,000 millimeters (10 and 40 inches). The average temperature in the coldest month is below 18 degrees Celsius (64 degrees Fahrenheit), and the average temperature in the warmest month is above 22 degrees Celsius (72 degrees Fahrenheit).
The other options are incorrect because they do not accurately describe the climate subtype “Aw”.
Option (a), “Semi-arid Steppe type”, is incorrect because it does not include the characteristic dry winter.
Option (b), “Tropical Savana type”, is incorrect because it does not include the characteristic hot summer.
Option (c), “Hot Desert type”, is incorrect because it does not include the characteristic wet summer.