The Circle or Ellipse Shown in the Calculator-Generated Graph Was $y_{1}$

Multiple Choice

The circle or ellipse shown in the calculator-generated graph was created using function mode with a square viewing window. What are the two functions $y_{1}$ and $y_{2}$ that were used to obtain the graph whose equation is given?
- $(x-5) ^{2}+y^{2}=25$

A) $y_{1}=\sqrt{25-(x-5) ^{2}}, y_{2}=-\sqrt{25-(x-5) ^{2}}$

B) $y_{1}=5+\sqrt{x-5}, y_{2}=5-\sqrt{x-5}$

C) $y_{1}=25+\sqrt{x-5}, y_{2}=25-\sqrt{x-5}$

D) $y 1=\sqrt{25+(x-5) ^{2}}, y 2=-\sqrt{25+(x-5) ^{2}}$