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The number $t$ is irrational. Which statement about $t - \sqrt{47}$ is true?$\newline$Choices:$\newline$(A) $t - \sqrt{47}$ is rational. $\newline$(B) $t - \sqrt{47}$ is irrational. $\newline$(C) $t - \sqrt{47}$ can be rational or irrational, depending on the value of $t$.