T sold his son a 30% interest in his partnership on January 1, of the current year. T retained a 50% interest and the remaining partner is T's father. The partnership had taxable income of $100,000 for the year. T drew no salary from the partnership. Capital is a material income-producing factor. The partnership and the partners have a calendar-year tax year. What is T's share of taxable income if T performed services worth a reasonable compensation of $30,000 and the son performed no services?

A. $25,000

B. $40,000

C. $65,000

D. $80,000