Which of the following are recommended to be worn while driving?

Answer: A — Seatbelts

Wearing a seatbelt is recommended while driving to ensure the safety of the driver and passengers in case of an accident. Sunglasses are also a good idea while driving to protect the eyes from the glare of the sun. Loose fitting clothing, however, is not recommended as it can be a distraction and may interfere with the driver's ability to control the vehicle. While it may seem like all of the options could be correct, only A, wearing a seatbelt, is specifically recommended for safety purposes while driving. Therefore, A is the correct answer.