By saying “The same man ...will ...risk an accident ...”(Line 1-2, Para. 3), the author means that
A.
a gentle man can change into a rude driver.
B.
it’s difficult for a driver to control himself when behind the wheel of an automobile.
C.
to drive has been a way for some drivers to express their hostile feelings.
D.
the emotional factors have been the leading cause of automobile accidents.