In Which of the Following Situations Would an Organization Most

In which of the following situations would an organization most likely use a technical sales specialist? 

A)  To sell a printing press that requires the seller to provide training for optimal user experience
B)  To convince pharmacies to promote a new cold remedy
C)  To implement an ad campaign for a local used car dealer who claims to sell at least 50 cars in a month and at a good profit margin
D)  To replace a couple of computers in a university computer laboratory