Simplify Remember That We Have Assumed That Radicands Do Not $\sqrt{z^{2}+10 z+25}$

Multiple Choice

Simplify. Remember that we have assumed that radicands do not represent the square of a negative number.
- $\sqrt{z^{2}+10 z+25}$

A) $(z+5) ^{2}$
B) $z+5$
C) $\sqrt{z}+\sqrt{|5|}$
D) $\sqrt{z}-\sqrt{|5|}$