Step 1: Understanding the Question
The question asks to identify the best time or season to visit Coorg according to the passage.
Step 2: Locating the Information in the Passage
We should look for keywords like "season", "visit", "best time", or descriptions of weather and time periods.
The passage mentions that during the monsoons, heavy rain keeps visitors away. This implies the monsoon season is not ideal.
The last sentence states: "The season of joy commences from September and continues till March." This "season of joy" refers to the pleasant tourist season.
Step 3: Analyzing the Options
(A) April to June is the summer season, not mentioned as the best time.
(B) July to August corresponds to the monsoon season, which the passage says keeps visitors away.
(C) September to March perfectly matches the "season of joy" mentioned in the passage.
(D) Since (C) is a valid option, this is incorrect.
Step 4: Final Answer
The passage clearly indicates that the ideal time to visit, the "season of joy," is from September to March.