Month Jan Feb Mar Apr Labour Hours (X) 201 173 292 299 185 267 160 321 Overhead Costs (7) $414 $387 $518 $536 $402 $490 $373 $563 May Jun Jul Aug Which of the following choices represents the highest and lowest respective coordinates of activity level and corresponding total overhead costs? ($373,160 labour hours). ($563.321 labour hours) (5563,321 labour hours). (5373, 160 labour hours) (160 labour hours $373), (321 labour hours, $563) (321 labour hours. $563). (160 labour hours $373)