The correct answer is A) transported its waters.
The Persian Gulf is more at risk for oil spills than other areas because oil is transported in its waters.
The Persian Gulf region is a real treasure for the oil reserves and production capacity. This Middle East region of the planet is one of the richest in oil reserves. Experts consider that oil reserves are 728 billions of barrels. This represents more than 50% of the reserves in the globe. Almost 18 million barrels are transported daily through the Persian Gulf waters and cross the Strait of Hormuz. That is why The Persian Gulf is more at risk for oil spills than other areas because oil is transported in its waters.