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The number $b$ is rational. Which statement about $b - \sqrt{3}$ is true?$\newline$Choices:$\newline$(A) $b - \sqrt{3}$ is rational.$\newline$(B) $b - \sqrt{3}$ is irrational.$\newline$(C) $b - \sqrt{3}$ can be rational or irrational, depending on the value of $b$.