I-mart is a discount optical shop that can fill most prescription orders in around 1 hour. the management is analyzing the processes at the store. there currently is one personassigned to each task below. the optometrist assigned to task b takes an hour off forlunch and the other employees work the entire day. task timea. greet/register the patient 2 minutes/patientb. optometrist conducts eye exam 25 minutes/patientc. frame/lenses selection 20 minutes/patientd. glasses made (process can run 6 pairs ofglasses at the same time) 60 minutes/patiente. final fi tting 5 minutes/patientfor a typical 10-hour retail day (10 a. m.