Identify the Vertex of the Given Parabola $f(x)=\frac{1}{7} x^{2}$ A) $(-7,0)$ B) $(7,0)$

Identify the vertex of the given parabola.
- $f(x) =\frac{1}{7} x^{2}$

A) $(-7,0)$
B) $(7,0)$
C) $(0,-7)$
D) $(0,0)$