Evaluate the Expression Without Using a Calculator $\log _ { 6 } 864 - \log _ { 6 } 4$

Multiple Choice

Evaluate the expression without using a calculator. $\log _ { 6 } 864 - \log _ { 6 } 4$

A) $216$
B) $432$
C) $3$
D) $16$
E) $860$