61 In 2018, Tonya, a married taxpayer (Excess business limitation threshold is $500,000), operates a sole proprietorship in which she materially participates. Her proprietorship generates gross income of $800,000 and deductions of $1,400,000, Tonyas excess business loss is: a. $0 b. $40,000 c. $30,000 d. $100,000 e. None of the above