Labour Overhead Month Hours (X) Costs (Y) Jan 201 $416 Feb 175 $387 Mar 289 $520 Apr 298 $533 May 187 $401 Jun 265 $488 Jul 158 $371 Aug 321 $565 Which of the following choices represents the highest and lowest respective coordinates of activity level and corresponding total overhead costs? ($371, 158 labour hours). ($565,321 labour hours) (158 labour hours, $371), (321 labour hours, $565) (321 labour hours, $565), (158 labour hours, $371) ($565, 321 labour hours), ($371, 158 labour hours)