Dosta Mattress Company manufactures and sells mattresses to retailers that then put their own store brand names on the product. At a price of $1,000, it sold 100 mattresses. It dropped its price to $600 and sold 175 mattresses. Regarding elasticity, what is demand for the mattresses?

a. unitary
b. inelastic
c. asymmetrical
d. elastic

Ans: d. elastic