If an industry experiences a "shock to supply" of minus 10%, demand constant, when the elasticity of demand is -0.5 and the elasticity of supply is 0.5, we would expect

a. equilibrium price to fall by 10% and supply to rise by 10%.

b. equilibrium price to fall by 10% and supply to rise by 5%.

c. equilibrium price to rise by 10% and supply to rise by 10%

d. equilibrium price to rise by 10% and supply to fall by 5%