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Bartering, which has taken place since the early history of man, implies a process of exchanging of goods. Bartering may present some difficulties during the process of exchanging. One problem that may occur when one is bartering, appears as the result of two people having different ideas about the value of the item (Option "B"). Since bartering lacks a standard unit of account, the prices on goods could not be measures or quoted. Due to the absence of a common unit of account, disagreements between exchangers may difficult the bartering process.
This connection that occurred as a result of the word "concert" is an
example of a Semantic network.
Semantic networks involves ways in which relationship between two or
more objects or reasoning are represented.
In this scenario, Maria friend told her of an upcoming concert and she
thought about the new CD that was to come out that day which means
there was a semantic network between both ideas due to the 'concert' used
which makes it the most appropriate choice.
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