v A music school wants to expand its class schedule. To better understand the current schedule, the director looked at which instruments are taught or not taught on various days of the week. The Venn diagram shows this information for two days of the week. All instruments taught Taught on Tuesday Taught on Wednesday Koto Guitar Zither (a) How many instruments are not taught on Wednesday? [D instruments (b) How many instruments are taught on both Tuesday and Wednesday? D instruments (c) Which instruments are taught on neither Tuesday nor Wednesday? Choose all that apply. () Bass [J Cello [ Flute [J) Koto () Oboe () Sax J Guitar [J Tuba [ Harp [ Zither