During a competition that lasts more than one hour, fluid replacement should contain ______ carbohydrate to maintain blood glucose concentration and delay the onset of fatigue.
A1 to 2 percent
B2 to 5 percent
C4 to 8 percent
D8 to 10 percent
A1 to 2 percent
B2 to 5 percent
C4 to 8 percent
D8 to 10 percent