I cannot understand why D is the correct answer. Are not here two possible ways? The first way, the cost of the telephone in country X is 200$ and in country Y is 300$ and tariff is 140$. This does explain that people do their purchases in Y because of high tarrif. The second way, the cost of the telephone in country X is 200$ and in country Y is 300$, but tariff is 80$. Then, it does not explain that people do their purchases in Y because of tarrifs.
Is my logic right?
Is my logic right?
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