Which of the following diagrams indicates the best relationship between Teacher, Writer and Musician?


(a)
(b)
(c)
(d)
The groups Teacher, Writer, and Musician are independent professions: a person may belong to any one, any pair, or all three (e.g., a teacher who is also a writer and musician). This requires three sets with pairwise and triple overlaps.
Hence the best representation is three intersecting circles. \[ \boxed{\text{Option (b)}} \]
