The traffic ______ very bad ______ the snowstorm. [ ]

A. was, because

B. was, because of

C. were, because

D. were, because of

办理实习期满教育考试业务时，受理岗应当审核申请人提交的身份证明和机动车驾驶证。符合规定的，安排教育考试。