It Is Remarkable That a Competition Was Held in 1401

It is remarkable that a competition was held in 1401 to design the doors to the Florence Baptistery,given that scarcely over a half century earlier,the city had witnessed

A) as much as four fifths of its population succumb to the Black Death.
B) the military destruction of as much as four fifths of the cathedral's dome.
C) as much as fourth fifths of the Ghibelline population die at Guelph hands.
D) the military destruction of as much as four fifths of the baptistery.