Answer:
Barter
Explanation:
Barter system is a kind of trade system of exchange in which the participles involving in the transaction directly exchange the services or the goods for other services or goods without the usage of medium of the exchange such as money.
Marcel and Charles are involving in barter system in which former exchanges the boat with the car of the latter.
A. The topic is the correct answer
Answer:
Social media use has also been associated with cyber bullying and cyber abuse by anonymous user online, which leads to problems of self-esteem, privacy, etc.
Explanation:
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