[20 - 21] Scenario: Kevin is a student who is yet to join a university in California. In the evening, he to music lessons. Kevin has to decide on an apartment to rent. The apartment should be at a suitable distance from two places: hls university, and from his music classes. The commuting time from apartments in four different locations to both destinations are shown in the table below. Given that Kevin's opportunity cost of time is \\( \\$ 10 \\) per hour. 20. Which of the following choices is true. A) (a) 2,500 ; (b) 1,900 ; (c) -100 ; (d) 100 B) (a) 2,600 ; (b) 2,500 ; (c) 100 ; (d) -100 C) (a) 2,700 ; (b) 2,500 ; (c) -100 ; (d) -100 D) (a) 2,700 ; (b) 2,500 ; (c) 100 ; (d) 100 21. Kevin's optimal choice is A) Apartment 1 B) Apartment 2 C) Apartment 3 D) Apartment 4