A COVID-19 antibody test helps determine whether someone had been infected by the novel coronavirus. The FDA initially let manufacturers distribute antibody tests that had not been approved by the FDA. Assuming an upward sloping supply curve for antibody tests, then as compared with the normal FDA policy that tests need to be approved by the FDA prior to being marketed, this more-lenient FDA policy causes the supply of antibody tests to _____. Group of answer choices Decrease (shift left) Stay the same Increase (shift right)