Brandon Is Retired and Lives with His Son, Charles

Brandon is retired and lives with his son, Charles. Charles and his sister and brother, Heloise and Barney, provide Brandon's total support: If the children file a multiple support agreement, which of the children are eligible to claim Bramdon as a dependent?

A) None.
B) Only Charles.
C) Only Heloise.
D) Only Charles and Heloise.
E) Charles, Heloise, or Barney.