Given the statement If there is an accident then the traffic is backed up. Which of these is the inverse of this statement.

f the traffic is not backed up then there is not an accident.
If there is no accident then the traffic is not backed up.
Accidents always makes the traffic back up.
If the traffic is backed up then there is an accident.

If there is not an accident then the traffic is not backed up.

The inverse of the statement "If there is an accident then the traffic is backed up" is:

If there is no accident then the traffic is not backed up.