Deriving demand using elasticity: Suppose you found in a published study that the ownprice elasticity of demand for a good is 0.5. The consumers currently purchase 300 units at the price of $20 each unit. If the demand takes on a pointslope linear functional form, the implied demand equation is O a. P=60D.1333Q O b. P =60T.5Q O c. P = 40 0.25Q 0 d. P = 80 0.6667