Find the Matching Number from Among the Choices Listed at Bottom

Find the matching number from among the choices listed at bottom. You may use choices more than once, and be aware that there are more choices than you will use.
-___ Its context is the war in Vietnam in the 1960s.

A) literalist
B) Popcorn Syndrome
C) figuratist
D) Noel Coward
E) e. e. cummings
F) The Birth of Tragedy from the Spirit
of Music
G) Madame Butterfly
H) Miss Saigon
I) Winston Churchill
J) Giacomo Puccini
K) Dionysus
L) Apollo
M) Pauline Kael
N) Gone with the Wind
O) Yogi Berra