The aid to trade which enables producer and consumer to transact business without physical contact is known as
- tourism
-
communication
- advertising
- insurance
The correct answer is: B
Explanation
Communication plays a vital role in enabling producers and consumers to interact, exchange information, and conduct business without the need for physical contact. Through various means of communication, such as telephone, email, online platforms, and other digital channels, producers and consumers can communicate and engage in business transactions remotely.