A demand or supply curve with ______________ would be horizontalin appearance.

a	unitary elasticity

b	zero elasticity

c	infinite elasticity

d	infinite cost elasticity

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If the demand curve is perfectly elastic, then an increase insupply will:

a	decrease the price but result in no change in the quantityexchanged.

b	increase the quantity exchanged but result in no change in theprice.

c	increase the price but result in no change in the quantityexchanged.

d	increase both the price and the quantity exchanged.