Several countries have joined forces to patrol Somali waters in response to the growing number of pirate attacks on commercial ships. But the pirates have only become more brazen, targeting larger vessels. Pirates even hijacked a Saudi oil tanker that was carrying over $100 million _____ oil. (A) with (B) for (C) to (D) in 请问选项答案为何是D呢？ 是指价值1亿的石油吗？ 为什么要用in呢？