The correct answer is: 2

We first try substitution:
 = 
Since the limit is in the form 0 over 0, it is indeterminate—we don’t yet know what is it. We need to do some work to put it in a form where we can determine the limit.
 = 2 x        ( L'Hopital's Rule for zero over zero;   )
Differentiate the above form

On substituting, We get
 = 2

We can only apply the L’Hospital’s rule if the direct substitution returns an indeterminate form, that means