Mashaal Masha
Which of the following expressions is equivalent to $x^{2}-5$?
Difficulty: Medium
A: 

$(x+\sqrt{5})^{2}$

B: 

$(x-\sqrt{5})^{2}$ 

C: 

$(x+\sqrt{5})(x-\sqrt{5})$

D: 

$(x+5)(x-1)$

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