The correct answer is C) June-September.
Telangana experiences high humidity during the monsoon season, which is from June to September. During this time, the state receives heavy rainfall, which causes the air to become humid. The humidity can be uncomfortable for people who are not used to it, and it can also lead to health problems such as respiratory infections.
The other options are incorrect because they are not the months during which Telangana experiences high humidity. Option A, December-February, is the winter season in Telangana. The weather during this time is dry and cold. Option B, March-May, is the spring season in Telangana. The weather during this time is hot and dry. Option D, October-November, is the autumn season in Telangana. The weather during this time is cool and dry.