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To simplify the square root of 28, we can factor it into its prime factors:
\[
28 = 4 \times 7
\]
Now, we can use the property of square roots that states \(\sqrt{a \times b} = \sqrt{a} \times \sqrt{b}\). Thus, we can write:
\[
\sqrt{28} = \sqrt{4 \times 7} = \sqrt{4} \times \sqrt{7}
\]
Since \(\sqrt{4} = 2\), we have:
\[
\sqrt{28} = 2 \times \sqrt{7}
\]
Therefore, the simplified form of \(\sqrt{28}\) is:
\[
2\sqrt{7}
\]
So the correct response is:
**2\(\sqrt{14}\)**