Which of the following is true about a firm in a competitive market if there is a decrease in market demand? Group of answer choices Short run profit will prompt entry into the market, shifting market supply to the right until prices equal ATC at the efficient scale. Short run losses will prompt exit from the market, shifting market supply to the left until prices equal ATC at the efficient scale. Short run profit will prompt entry into the market, shifting market supply to the left until prices equal ATC at the efficient scale. Short run losses will prompt exit from the market, shifting market supply to the right until prices equal ATC at the efficient scale. Short run losses will prompt entry into the market shifting market supply to the left until prices equal ATC at the efficient scale