听力原文：There are primarily three principal parties involved: the trustor, the beneficiary and the trustee.
(8)
A．The trustor, the beneficiary and the settlor are primarily three principal parties.
B．The trustor, the beneficiary and the trustee are primarily three principal parties.
C．The trustor, the beneficiary and the grantor are primarily three principal parties.
D．The trustor, the beneficiary and the donor are primarily three principal parties.