(A) 47
(B) 17
(C) ** 87
(D) 407
EXPLANATIONS BELOW
Concept note-1: -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).
Concept note-2: -four·score ˈfȯr-ˈskȯr. : being four times twenty : eighty.