Answer:
In 2016 the NFL stated that "players are encouraged but not required to stand during the playing of the National Anthem"; its game operations manual reads that players "should stand" for the anthem.
Explanation:
Answer: Slaves sing most when they are most unhappy. The songs of the slave represent the sorrows of his heart; and he is relieved by them, only as an aching heart is relieved by its tears.
Explanation: hope this helps :)