Why did George Washington choose Christmas day, 1776, to mount an attack on German mercenary soldiers in New Jersey?

Many of his troops' enlistment periods ended on December 31, only six days later.

Explanation:

George Washington choose Christmas day 1776 to attack because most his troops enlistment period will end in December 31 and he needed them to fight the battle before the end of their enlistment period.

answer; /// the correct answer is (a) burned the city;