Use Integration by Parts to Evaluate the Integral $\int ( 3 - x ) e ^ { x } d x$

Multiple Choice

Use integration by parts to evaluate the integral $\int ( 3 - x ) e ^ { x } d x$ .

A) $( 4 - x ) e ^ { x } + C$
B) $( 4 + x ) e ^ { x } + C$
C) $( 3 - x ) e ^ { x } + C$
D) $( - 4 - x ) e ^ { x } + C$