It’s hard for people to make their way .
A. in the rushing hours
B. at the rushing hours
C. at the rush hours
D. on the rush hours
网友回答
A. in the rushing hours
B. at the rushing hours
(答案→)C. at the rush hours
D. on the rush hours
解析：“在交通繁忙时人们很难通行。”at the rush hours 固定短语“交通繁忙时”，答案C。