There Are Several Close Substitutes for Quaker State Oil but Fewer

Multiple Choice

There are several close substitutes for Quaker State oil but fewer substitutes for a complete checkup of your car's engine. We can expect the demand for:

A) Quaker State oil to be more price-inelastic.
B) the two to be equally price-elastic.
C) car checkups to be more price-elastic.
D) Quaker State oil to be more price-elastic.