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Rationalizing a Denominator IV

ALGEBR-GQENF1

Simplify the radical and write it in simplest radical form:

$$\frac{4}{\sqrt{8}}$$

A

$2\sqrt{2}$

B

$\sqrt{2}$

C

$\cfrac{\sqrt{8}}{2}$

D

$\cfrac{1}{\sqrt{8}}$