5.Examine the following statements:

a)"If a product has a positive externatlity effect when consumed, then there will be an over-production of the product and the government needs to use a tax to correct the allocative inefficiency."TRUE or FALSE and explain.

b)"If the government imposes a sales tax on a perfectly price elastic product, the burden of the tax is fully on the producer."TRUE or FALSE and explain.

please answer with long and fully explain