Harinder originally reported $39,750 as his adjusted gross income on his 2020 Form 1040. He received another Form W-2 for $500 after he filed his original income tax return. Which of the following statements is true?

A. Harinder should use Form 1040X - Amended U.S. Individual Income Tax Return to correct the Form 1040

B. Harinder should file another Form 1040 for 2020

C. Harinder is not required to report the income for 2020 after he files his original Form 1040

D. Harinder should include the $500 on his 2021 Form 1040