Demarcus is a sole proprietor who had a nonfarm net operating loss in 2020. Which of the following is NOT an option for his loss? Demarcus may waive the carryback by attaching a statement to his timely-Ned 2020 return He may carry the loss back to his 2015 return using Form 1040-X He may carry the loss back to his 2015 return uting Form 1045. He may carry the loss back to his 2015 return using Form 1139 000 OOOO Which of the following is considered nonbusiness income when determining the amount of a net operating loss? Social security benefits. Unemployment compensation, Salary received as an employee. Rental income