Find the Equation of the Tangent Line at the Given $x^{2}+3 y^{2}=13 ;(1,2)$

Multiple Choice

Find the equation of the tangent line at the given point on the curve.
- $x^{2}+3 y^{2}=13 ;(1,2)$

A) $y=-\frac{1}{6} x+\frac{13}{6}$
B) $y=-\frac{1}{3} x+\frac{7}{3}$
C) $y=\frac{1}{3} x+\frac{5}{3}$
D) $y=\frac{1}{6} x+\frac{11}{6}$