help me on these two question, both of them are one question

During 2020, Curran Ltd, a public corporation, has net income for tax purposes of $600,000, including $100,000 of dividends from taxable Canadian corporations and $500,000 of retailing profits. It made $200,000 of charitable donations during the year. Income earned in a province was 90%. What is Curran Ltd's taxable income for the year? Select one: A. $600,000 O B. $500,000 C. $400,000 O D. $300,000 Refer to the facts given in Question 5, above. What is Curran Ltd's federal tax payable for the year? Select one: A. $22,000 B. $48,000 o C. $87,000 O D. $52,500