Answer:
C) crude oil
Explanation:
Crude oil and its byproducts (gasoline, plastic, etc.) have a very inelastic demand, e.g. the price elasticity of gasoline is between -0.02 and -0.04.
On the other hand, luxury goods have a very elastic demand, totally opposite to oil. The same applies for the demand of candies. While the demand for beef tends to be unit price elastic (or near it).
