question attached

Question 27 1 pts Mary and David are the only two people in an economy, and they both sew (and wear) t-shirts and sweatpants. T-shirts and sweatpants are the only goods in the economy. The number of t-shirts and sweatpants they can each produce per hour is given in the table below. Mary David T-shirts per hour 15 5 Sweatpants per hour 20 10 For Mary, the opportunity cost of producing 1 t-shirt is ___ sweatpants. O 0.75 O 15 O 1.33 O 20