The correct answer is: b) Pleasant and cool summers.
The Nilgiri Hills are a mountain range in southern India. They are known for their pleasant and cool summers, which are a popular tourist destination. The average temperature in the Nilgiri Hills ranges from 15 to 25 degrees Celsius (59 to 77 degrees Fahrenheit). The summers are mild and dry, while the winters are cool and wet. The Nilgiri Hills are home to a variety of plant and animal life, including elephants, tigers, and leopards.
Option a) is incorrect because the Nilgiri Hills do not have hot and dry summers. The summers are mild and dry.
Option c) is incorrect because the Nilgiri Hills do not have heavy rainfall throughout the year. The rainfall is concentrated in the monsoon season, which runs from June to September.
Option d) is incorrect because the Nilgiri Hills do not have very cold winters. The winters are cool and wet.