Solve For $r$ $$T = r b - r n$$ A) $r = T ( b + n )$

Multiple Choice

Solve for $r$ .
$$T = r b - r n$$

A) $r = T ( b + n )$
B) $r = \frac { T } { b + n }$
C) $r = \frac { T } { b - n }$
D) $r = T ( b - n )$