Assignment task: John by his will created a trust with income and corpus payable in the trustee's discretion to his son, grandson and great grandson until the death of the last of these beneficiaries. On that date, the trust is distributable to John's then-living issue.
A. On the son's death, there is a taxable termination.
B. After the son's death, a distribution to John's grandson is not a taxable distribution.
C. After the son's death, a distribution to John's great grandson is a taxable distribution.
D. All of the above.
E. None of the above