Answer:
b. Diminishing marginal returns
Step-by-step explanation:
According to the law of diminishing returns, as more units of a variable input is added to a fixed income of production, output might increase at a point but after some time total output would increase at a decreasing rate and marginal product would be decreasing.
Due to the fact that Jim has seen the movie once, he would not derive the same level of satisfaction from watching the movie a second time. The utility he would receive from watching the movie a second time would be less than when he watched it a first time.