$A$ relation $R$ defined on the set $A = \{a, b, c\}$ is given by $R = \{(a, a), (b, b), (c, c), (a, c)\}$. This relation is . . . . . . .

  • A
    reflexive and symmetric but not transitive.
  • B
    reflexive and transitive but not symmetric.
  • C
    symmetric and transitive but not reflexive.
  • D
    an equivalence relation.

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