Calculate the price elasticity for each of the following combination of price and quantity supplied. In each case, determine whether supply is elastic, inelastic, perfectly inelastic, or unit elastic in each case. (a) Price falls from $2.25 to $1.75; quantity supllied falls from 600units to 400 units. (b) price falls from $2.25 to$1.75 quantity supplied falls from 600 units 500 units (c) Price falls from $2.25 to $1.75; quantity supplied remains at 600 units. (d) price increases from $1.75 to $2.25; quantity supplied increases from 466.67 units to 600