Explain why the radical expression is or is not in simplified form.

StartFraction 11 Over StartRoot 11 EndRoot EndFraction
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Part 1
Choose the correct answer below.
A.
The expression is simplified because the radicand contains no fractions.
B.
The expression is not simplified because it contains a fraction.
C.
The expression is simplified because the radicand has no​ perfect-square factors other than 1.
D.
The expression is not in simplified form because a radical appears in the denominator of a fraction.

C. The expression is simplified because the radicand has no​ perfect-square factors other than 1.

In this case, the radicand is 11, which is a prime number and has no perfect square factors other than 1. Therefore, the radical expression is in simplified form.