Suppose that limx$$a f $($x$)=$ $.$ Then,

$($A$)$ limx$$a $1$

f $($x$)=$

$($B$)$ limx$$a $1$

f $($x$)=0$

$4$ LONG TERM BEHAVIOR AND ASYMPTOTES $10$

$($C$)$ limx$$a $1$

f $($x$)=$

$($D$)$ none of the above