Elasticity

The price of coffee fell sharply last month, while the quantity sold remained the same. Five people suggest various explanations:

Lorenzo:Demand decreased, but it was perfectly inelastic.Neha:Demand decreased, but supply was perfectly inelastic.Sam:Demand decreased, but supply increased at the same time.Teresa:Supply increased, but demand was perfectly inelastic.Andrew:Supply increased, but demand was unit elastic.

Who could possibly be right?Check all that apply.

Lorenzo

Neha

Sam

Teresa

Andrew