In $\mathbb{R}$, a relation $p$ is defined as follows: $\forall a, b \in \mathbb{R}$, $a \ p \ b$ holds if $a^2-4ab+3b^2=0$. Then:

  • A
    $p$ is an equivalence relation
  • B
    $p$ is only symmetric
  • C
    $p$ is only reflexive
  • D
    $p$ is only transitive

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