When the price of used cds is $4, Daphne buys five per month. when the price is

Question:

When the price of used cds is $4, Daphne buys five per month. when the price is $3, she buys nine per month. Daphne's demand for used cds is
a. Elastic and her demand curve would be relatively flat
b. Elastic and her demand curve would be relatively steep
c. Inelastic and her demand curve would be relatively flat
d. Inelastic and her demand curve would be relatively steep