Step 1: Understand the seasons.
Autumn, also known as fall, begins after the summer season. It marks the transition from the hot summer to the colder winter.
Step 2: Analyze each option.
- (A) spring: Incorrect. Spring precedes summer, not autumn.
- (B) winter: Incorrect. Autumn comes before winter, not after it.
- (C) rainy: Incorrect. Rainy season is more commonly associated with the monsoon, which varies by region.
- (D) summer: Correct. Autumn follows summer in the seasonal cycle.
Step 3: Conclusion.
Autumn begins with the departure of summer.