我在英语听力听到一句句子,是这样子的：我不太懂,

我在英语听力听到一句句子,是这样子的：我不太懂,
我在英语听力听到一句句子,是这样子的：
They often provide health insurance,two weels of paid vacation a year,and opportunities for advancement.
然后问题是：What are the benefits the company provides?
A.Paid vacation,opportunities for advancement,and medicare.
C.Paid vacation,opportunities fo promotion,and health insurance.
这个选项的答案是选C,我想选的是A,为什么呢?