The following is the behavior of Cost A: Units Average Produced Cost per Unit 500 $4 1000 $3 2000 3000 $3 $3 ******** Which of the following statements most likely describes the behavior of Cost A? Oa. Cost A is always inside of the relevant range of production. Ob. Cost A is a fixed cost and 500 units is outside of the relevant range of production with respect to Cost A. O c. Cost A is a variable cost and 500 units is outside of the relevant range of production with respect to Cost A. Od. One is unable to gain any insight on the behavior of Cost A from the given information.