4 2.5 pts During 2020, ABC Ltd, a public corporation, has net income for tax purposes of $700,000, including $100,000 of dividends from taxable Canadian corporations and $500,000 of retailing profits. It made $700,000 of charitable donations during the year. Income earned in a province was 90%. What is ABC Ltd's taxable income for the year? $175,000 $75,000 $500,000 $600,000