If everyone__ the traffic rules,the roads will be safer.A to obeyB obleyingC obeysD obey请在虚线处填上适当的选项

If everyone__ the traffic rules,the roads will be safer.
A to obey
B obleying
C obeys
D obey
请在虚线处填上适当的选项

c
obey意为"遵守",if后引导的条件从句这里用一般现在时,而everybody为三单,因此选c

C