We would like to take this ______ to establish business relation

We would like to take this ______ to establish business relations with you.
A、opening
B、opportunity
C、step
D、advantage
【正确答案】：B
【题目解析】：opening开放；opportunity机会；step步骤；advantage优势
句意：我们愿借此机会与贵公司建立业务关系。