Question

In A White House Diary, where was Lyndon

b. Johnson sworn in as President?
a. in the hospital
b. in the White House
c. on the plane
d. in the Senate

Answer 1

Lyndon Johnson was sworn in on the plane

Answer 2

Lyndon Baines Johnson was sworn in on Air Force 1 after the death of Kennedy was announced.  Therefore, c. on a plane.