Select the Venn diagram that best illustrates the relationship between the following classes.
India, Tamil Nadu, Chennai

To determine the best Venn diagram representing the relationship between India, Tamil Nadu, and Chennai, we can analyze the geographical hierarchy of the three classes:

1. Chennai is a city that is located entirely within the boundaries of the state of Tamil Nadu.
2. Tamil Nadu is a state that is located entirely within the country of India.
3. Therefore, Chennai is also entirely contained within India.

This hierarchical relationship can be mathematically represented as a nested subset relationship:
Chennai ⊂ Tamil Nadu ⊂ India

In a Venn diagram, complete containment is illustrated by concentric circles (circles nested inside one another):
- The innermost circle represents Chennai.
- The middle circle represents Tamil Nadu, which completely encloses Chennai.
- The outermost circle represents India, which completely encloses both Tamil Nadu and Chennai.

Based on this analysis, the diagram showing three concentric circles is the correct representation: