Select the correct answer.
What did the Nazis do to try to cover up the murders carried out as part of the Aktion-T4 program?
A.
They presented witnesses to make false statements.
B. They sent pictures of the killings to the families.
C.
D.
O E.
They made the victims sign a statement.
They recorded videos of the killings.
They presented urns to the families of the victims.