Ahmed Agrees to Trade His Copy of the Collector's Edition

Multiple Choice

Ahmed agrees to trade his copy of the collector's edition "Initial Fantasy VI" for a new copy of "Phobiaman: The Journey Beyond Fear." He then finds out that the "Phobiaman" series has been banned due to objectionable content.The offer is automatically terminated due to ________.

A) supervening illegality
B) lapse of time
C) death or incompetency
D) destruction of the subject matter