What box to check? 1040X, item F

[ellbee62]

I am filing an amended return and don't understand which box to check on 1040X, Section I, item F.  See attached picture.  This is just an amendment due to forgetting to include my state refund from last year as income.

[PhyllisG]

You will check Federal.  States do not require the reporting or taxation of state refunds.