The main idea of this text is that one must:
Show answer & explanation
Correct answer: B
Explanation
The correct answer is option 2 i.e. take courses in stitching and repairing clothes.
The passage emphasizes the importance of extending the life of clothes by mending and repairing them, mentioning websites like Love your Clothes that encourage this practice and offer tips.
Line to refer: “Besides buying less, one can extend the life of our clothes by mending and repairing them. Websites like Love your Clothes encourage this and also offer tips on how to do this.”
Hence, the chosen option will be correct.