Rivers, Ganga, Water bodies

The question asks to represent the relationship between three classes: Rivers, Ganga, and Water bodies using a Venn diagram.
This implies a nested relationship:
Ganga $\subset$ Rivers $\subset$ Water bodies
A nested subset relationship is best represented by concentric circles in a Venn diagram.
This structure visually demonstrates that every Ganga is a River, and every River is a Water body.
The Venn diagram that accurately depicts this hierarchy consists of three concentric circles. The diagram matching this structure is shown in Option 2.
Study the diagram and identify the region representing teachers who are Chinese but not Indian.
Study the diagram and identify the region representing teachers who are Indian and Chinese.
Study the diagram and identify the region representing teachers who are Indian but not Chinese.
In the following diagram, A contains all the people who like chocolate, B contains all the people who like ice-cream and C contains all the people who like candy. What does the shaded area represent?

How many stars are both Tyres and Pen?

In the following figure, square represents Priests, triangle represents singers, circle represents Therapists and rectangle represents Indians. Which set of of letters represents Indians who are not priests?

Study the given diagram carefully and answer the question. The numbers in different sections indicate the number of persons.

How many such medallists are there who are also Indians?
Study the given diagram carefully and answer the question. The numbers in different sections indicate the number of persons.

How many Africans are there who are also authors?
Identify the diagram that best represents the relationship among classes given below: Universe, Stars, Sun
Which one of the following diagrams represents the relationship between Insects, Flies and Dogs?