Amine extracts 2 tons of ore in an hour. of the total ore extracted in a day, 4 tons is purchased by the government and more than 10 tons is sold to a mineral extractor. if the mine operates for x hours in a day, what is the simplest inequality that represents the number of hours the mine must operate to meet its obligations?
a) x > 2
b) x > 4
c) x > 5
d) x > 7