Choose the Venn diagram from the options which represents the correct relationship amongst the given classes:
Human beings, Teachers, Unmarried

Given: Human beings, Teachers, Unmarried

Human beings: This is the broadest category, encompassing all teachers and unmarried individuals.

Teachers: All teachers are human beings. Some teachers may be married, and some may be unmarried.

Unmarried: All unmarried individuals are human beings. Some unmarried individuals may be teachers, and some may not be.

Thus, correct option is (c).