Solve the Equation $( \log x ) ^ { 2 } = \log x ^ { 2 }$

Multiple Choice

Solve the equation.
- $( \log x ) ^ { 2 } = \log x ^ { 2 }$

A) { }
B) $\{ 1,100 \}$
C) $\{ 1 \}$
D) $\{ 100 \}$