Need help getting correct answer

CO O e) 12 20. The productivity of workers at a shoe factory (in pairs of shoes per hour) can be modeled using the function p(h) = -2/8h + 4, where h is the number of hours. If a worker must create at least 2 pairs of shoes per hour for the company to be profitable, how long should the worker's shift be? o a) 5 o b) 6 O C) 7 O e)