There Are Very Few,if Any,good Substitutes for Motor Oil

Multiple Choice

There are very few,if any,good substitutes for motor oil.Therefore,

A) the demand for motor oil would tend to be inelastic.
B) the demand for motor oil would tend to be elastic.
C) the demand for motor oil would tend to respond strongly to changes in prices of other goods.
D) the supply of motor oil would tend to respond strongly to changes in people's tastes for large cars relative to their tastes for small cars.