In the following diagram, three classes of populations are represented by three figures. The triangle represents the school teachers, the square represents the married persons and the circle represents the persons living in joint families.Married teachers living in joint families are represented by(A) C (B) B (C) D (D) A

In the following diagram, three classes of populations are represented

1.	In the following diagram, three classes of populations are represented by three figures. The triangle represents the school teachers, the square represents the married persons and the circle represents the persons living in joint families.Married teachers living in joint families are represented by(A) C (B) B (C) D (D) A
Answer» (B) Married teachers are represented by the region common to the square and the triangle i.e., B and C. But, according to the given conditions, the persons should be living in joint families. So, the required regions should be a part of the circle. Since B lies inside the circle, so the given conditions are satisfied by the persons denoted by the regions B.