please explain the answer

15. Kasha had a basis in her partnership interest at the beginning of last year of $50,000. There was no change in partnership liabilities during the year. Her share of the partnership's ordinary loss last year was $65,000 and the partnership had no separately stated items. This year, Kasha has a distributive share of ordinary income of $45,000. The taxable income from the partnership reported on Kasha's personal income tax return this year (ignoring the at-risk and passive activity loss limitations) is A) $15,000 ordinary loss. B) $30,000 ordinary income. C) $45,000 ordinary income. D) $65,000 ordinary income