After a massive promotional campaign of Justin Bieber's latest music album,the producers decided to raise the prices on the album.This implies that the producers expect the promotion to have made the demand for the album​

A) ​More elastic
B) Unitary elastic
C) Perfectly elastic
D) ​More inelastic

By increasing the price of the album, the producers expect that demand for the album to be more inelastic, meaning that consumers will still buy the album despite the price increase. This suggests that the promotional campaign was effective in creating a strong demand for the album, and that consumers are willing to pay more for it.