Assertion $(A)$: $f(x)=|x-a|+|x-b|$ is continuous on $R$. Reason $(R)$: $\frac{|x-\alpha|}{x-\alpha}$ is continuous at $x \in R-\{\alpha\}$. The correct option among the following is:

  • A
    $A$ is true, $R$ is true and $R$ is the correct explanation for $A$
  • B
    $A$ is true, $R$ is true but $R$ is not the correct explanation for $A$
  • C
    $A$ is true but $R$ is false
  • D
    $A$ is false but $R$ is true

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