21, 22, 23, 26, 29, 32, 34, 38, 40, 42, 43 For this data set, the first quartile is 23, the median is 32, and the third quartile is 40. HT O A. 20 24 28 32 36 40 44 48 O B. 20 24 28 32 36 40 44 48 HIR O c. 20 24 28 32 36 40 44 48 O D.