Simplify the Rational Expression $\frac { \mathbf { r } + \mathbf { r s } } { \mathrm { r } }$

Simplify the rational expression.
- $\frac { \mathbf { r } + \mathbf { r s } } { \mathrm { r } }$

A) $1 + \mathrm { rs }$
B) s
C) 1 + s
D) r + s