A. 8 a.m.–3 p.m., 2 or 3 days per week

B. 9 a.m.–4 p.m., 2 or 3 days per week

C. 10 a.m.–5 p.m., 4 or 5 days per week

D. 7 a.m.–2 p.m., 1 or 2 days per week