Alex withdrew $15,000 from his RRSP three years ago. He made scheduled repayments of $1,000 last year and this year. This year, he made an additional RRSP contribution of $4,000, which he designated as an HBP repayment. What will his minimum HBP repayment be for next year? a) $0.00 b) $600.00 c) $692.31 d) $1,000.00