The Words Under God Were Added to the Pledge of Allegiance

The words under God were added to the Pledge of Allegiance

A) in the midst of the Cold War, as a response to the "godless communism" of the Soviet Union.
B) during the Civil War, to tie the Union's war effort to religion.
C) in 1823, during a religious revival called the Second Great Awakening.
D) as a result of campaign promises made by the Republican Party during the election of 1980.