The Following Questions Are Linked to This Scenario: a Fuel-Oil

The Following Questions are linked to this scenario: A fuel-oil retailer has researched the demand patterns for fuel oil in its market area.
-A preliminary study of demand revealed that the vast majority of consumers are service-oriented. Important services to all customer groups, in order of importance, are emergency repair, low-cost heating system warranties, credit, and an annual heating system check-up. What demand pattern for fuel oil exists?

A) Diffused demand
B) Derived demand
C) Homogeneous demand
D) Clustered demand