Oscar is 73 years old. His 2019 net income for tax purposes from his RRIF and other investments is S120,000. He lives with his common-law partner, Felix who is 63 years old. Felix's only income for 2019 was investment income of $6,000. Oscar can claim all of the following federal tax credits except: A. Basic personal tax credit. B. Age tax credit C. Pension tax credit D. Spousal tax credit