Perfect Time Itd. Company sells wall clocks. Perfect Time Company currently sells 1 unit of wall clocks at $12/unit. The Company currently sells 3,400 units per month. The following costs pertain to the production of clocks: (Direct material= 3$/unit) (Direct Labor= 5 $/unit) (Monthly rent=$3,000) (Monthly Salaries for 2 supervisors = $8,000).In case the company increases the wage of Direct Labor to $6 per unit and fired one of the supervisors so that the monthly supervisors salary is only $4,000. Calculate the effect on net income. Select one: a. Increase by 500 b. Decrease by 500 c. Increase by 600 d. no effect