Select the Venn diagram that best illustrates the relationship between the following classes.
Doctor, Professor, Cardiologist
1 = Doctor, 2 = Cardiologist, 3 = Professor
Show answer & explanation
Correct answer: A
Explanation
The correct answer is Option 1 i.e. 
The possible Venn diagram is:
All cardiologists are doctors. Some doctors are professors. Some cardiologists are professors.
Hence, the diagram given above shows the best relationship between them.
Hence, option 1 is the correct answer.