这道英语单选选啥：There are plenty of jobs ___ in the western part of the cuontry.
题目和选项如下：
There are plenty of jobs ___ in the western part of the cuontry.
A：present
B：available
C：precious
D：convenient
【除选择外,请说明选择的原因,和翻译句子的意思,和每个选项单词的意思.不然不选你为答案哦】