Which of the Following Is an Example of Kant's Concept

Which of the following is an example of Kant's concept of "good will"?

A) An officer issues a warning to a speeding motorist because it takes too much time to fill out the paperwork for a ticket.
B) An officer issues a ticket to a speeding motorist because it is the policy of the department to issue a ticket rather than give warnings.
C) An officer issues a warning to a speeding motorist with the genuine belief the motorist will slow down and make the roadway safer for all.
D) An officer issues a ticket to a speeding motorist because the officer is under orders to write as many tickets as possible to help with the city's budget problem.