Please give the code to solve #3 parts (a), (b), and (c).

3. Consider the smoothed Heaviside function if x Implement a Mathematica code to perform the following operations: (a) Define the function He(2) with e and 2 as input variables using the If-else control structure. Do not use the Piecewise function in Mathematica. (b) Set = 3 and use it to evaluate H(-5), H(-2), H.0), H(2), H.(5) (c) Plot your function for 2 (-5,5). Make sure you label the x and y axes of your plot