challenge: How did South Vietnamese officials react to Lyndon B. Johnson's withdrawal from the 1968 United States presidential election?
  
  A. They were relieved and expected a stronger commitment to the war effort from the next administration.
  B. They were concerned about the potential for an anti-war candidate to withdraw troops and not support them.
  C. They were thrilled and expected a significant increase in military aid.
  D. They were indifferent and focused on their own domestic issues.
  Answer: 