The correct answer is C. The product costs more in the U.S. that on the world market.
When the government establishes high tariff rates for a product, the first impact is that the cost of acquiring that product in the domestic market increases.
The government can establish this high tariff for different reasons: to collect more tax money, to protect the local industry from foreign competition, to discourage the use or consumption of that product, etc. In all cases the same result is obtained: the price of the product becomes more expensive than in the rest of the free markets or with lower import tariff.