You're the Marketing Director for a Company That Manufactures Customized

You're the marketing director for a company that manufactures customized mining equipment used to extract fairly rare precious metals like iridium, palladium, and rhodium from the earth. You have chosen to create a fairly short distribution channel because:

A) a long channel would diminish your profit margins without offering any benefits.
B) there are so few customers for your product that you can manage your own sales efforts within the company.
C) it is challenging to deliver the kind of highly specialized equipment you manufacture to remote locations.
D) your customers are located all over the world.