Answer:
Option (4)
Explanation:
Parent function of the graph attached,
f(x) =

If the given function is shifted by 'a' units to the left,
Rule for the transformation is,
g(x) = f(x + a)
So the transformed function will be in the form of g(x) =

Therefore, from the given options, f(x) =
will match our requirements.
Option (4) will be the answer.