Amending return based on Box 13

Returns has been filed and accepted. 

Employer issued a correct W2 where Box 13 (Retirement Plan) is checked.

I entered the changes did not affect the tax refund amount at all.

Do I need to amend my return?

IF yes, What reason would be applicable on choices (below) from Schedule X form? 

 

Check all that apply:

a Protective claim for refund
b Reservation source income adjustments
c Pass-through entity adjustments
d Federal audit and/or adjustments
e FTB audit contact
f NOL carryback See instructions
g Error on original return
h Credit adjustment
i Earned income tax credit
j Disaster loss
k Military HR 100
l Informal claim
m Other

 

2 Provide further explanation of reason(s) for amending below If needed, attach a separate sheet that includes your name.