explain the following statements to a non-economist:

a.if Price elasticity of demand for insulin is perfectly inelastic.

b.if The cross-price elasticity for bottled water is elastic.

c.if college credits are inelastic.

d.if The price elasticity of supply for craft beer is elastic.

e.if The income elasticity of demand for cornea transplant in Louisiana is inelastic. It is however elastic in Honduras.