During the Current Year, the Santo Trust Received $30,000 of Taxable

During the current year, the Santo Trust received $30,000 of taxable interest income, paid trustee's commissions of $3,000, and had no other income or expenses. The Santo trust instrument requires that $20,000 be paid annually to Marilyn and $40,000 be paid annually to Domingo. How much gross income must Marilyn and Domingo recognize?

A) $20,000 by Marilyn and $40,000 by Domingo.
B) $15,000 by Marilyn and $15,000 by Domingo.
C) $13,500 by Marilyn and $13,500 by Domingo.
D) $9,000 by Marilyn and $18,000 by Domingo.