(A) He recognizes the need for humor at a sad time.
(B) He wishes to relate complex ideas to a common cause.
(C) He is concerned with losses due to battlefield casualties.
(D) ** He is aware of the nation’s short history and its founding principles.
EXPLANATIONS BELOW
Concept note-1: -So “four score and seven years” translates to 87 years. This speech was delivered in 1863; 87 years earlier was 1776, the year that the signing of the Declaration of Independence officially declared U.S. independence and “brought forth on this continent a new nation."
Concept note-2: -Literally, “87 years ago” (score sense: “group of 20”) the beginning of the Gettysburg Address made on November 19, 1863, by United States President Abraham Lincoln (1809–1865).