A contact lens manufacturer sells contact lenses that are advertised to last for a week, month, or six months. the lenses are sold at different prices with the six month lenses being the most expensiv

A contact lens manufacturer sells contact lenses that are advertised to last for a week, month, or six months. the lenses are sold at different prices with the six month lenses being the most expensive. the manufacturer only produces one type of lens (which must clearly be able to last six months) and packages that lens in each of the three categories. do you think the manufacturers approach can be justified on any grounds? please be specific