Continue to Suppose as in the Previous Question That the Utility

Multiple Choice

Continue to suppose as in the previous question that the utility function for each of the firm's 5 workers is $U ( l ) = w l - l ^ { 2 }$ where l is hours worked and w is the wage.Suppose now that the firm can only monitor the total hours worked by the group and pay each worker an equal share of the wage $w = 20$ times the total number of hours.How many hours will each worker choose to work?

A) 2 hours.
B) 4 hours.
C) 8 hours.
D) 10 hours.