Determine What, If Any, Value to Assign To $f ( a )$

Multiple Choice

Determine what, if any, value to assign to $f ( a )$ to make f continuous at
$x = a$ . $f ( x ) = \frac { 1 - e ^ { x } } { x }$ ; $a = 0$

A) $f ( 0 ) = 1$
B) $f ( 0 ) = - 3$
C) $f ( 0 ) = 3$
D) $f ( 0 ) = - 1$
E) No value of $f ( 0 )$ will make it continuous at 0.