The following economics question in the picture

Question 2 5 pts Which of the following statements is correct? 1. Whenever the MPL (marginal product labour] curve becomes a downward sloping curve, the APL is also e downward sloping curve that lies above the MPL curve. IL. If a firm uses only labor to produce, and the production function is given by a straight line, then the MPL is always equal to the APL as labor employment expands. Ill. Suppose a factory uses a technology where the marginal product of labor rises, then is constant and finally falls as employment increases. Then this technology must follow the law of diminishing returns. Oil only O lunly OLLI O'll and int O I and II O l and Ill O The correct answer Is not listed