If the following has solution set , what is the range of a? | ICStudy

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If the following has solution set $x \geq a$ , what is the range of a?

$\begin{cases} x>3\\ x\geq a \end{cases}$

A.

$a\leq 3$

B.

$a=3$

C.

$a>3$

D.

$a\geq 3$

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