Q17.44: Sabrina's Interior Design won a contract to provide interior design for several model homes in a large development currently under construction. Design team members often escort clients through the homes in the hope of winning new customers. The company has a small staff of designers who work an average of 45 hours per week. Sabrina has asked each of them to compile a list of the activities they perform each week and the time they spend performing each activity, with the following results: Activity Billing clients Answering client e-mails Cleaning the office Showing clients through model homes On-site supervision of workers (painters, etc.) Attending staff meetings Designing Time 4.6 8.4 2.5 15.0 6.8 2.0 6.0 How much time does each designer spend on value-added activities? A 27.8 hours B 36.2 hours C 29.4 hours 40.8 hours