Answer:
This is an example of adjective clause
Explanation:
The term which is used in the example and Adjective Clauses inform me that a noun is included in the example, which ends up supporting my answer because the noun occurs at a certain time (which transitions the fact that Diwali, a Hindu festival is celebrated on autumn.)
Is there like a: A B C D option????
The passive voice can be effectively used to
The correct option is A. Create an impersonal tone. The important thing is not what or who has done the action. That's why passive voice is so used in newspaper articles.