Which of the Following Statements Is True of Termination by Operation

Which of the following statements is true of termination by operation of law?

A) If one of the parties dies, that party's legal heir assumes the role held by that party in a principal-agent relationship.
B) If an agent is bankrupt, a principal-agent relationship is terminated.
C) If performance is rendered impossible by uncontrollable circumstances, a principal-agent relationship is terminated.
D) When a principal-agent relationship is terminated by law, the principal must notify the third parties.