Which statement explains why the value of [tex]\lfloor 2.4 \rfloor[/tex] is 2 but the value of [tex]\lfloor -2.4 \rfloor[/tex] is -3?
A. Because 2 is the greatest integer not greater than 2.4, and -3 is the greatest integer not greater than -2.4.
B. Because 2.4 rounds to 2, and -2.4 rounds to -3.
C. Because 2.4 is positive, and -2.4 is negative.
D. Because 2 is the least integer greater than 2.4, and -3 is the least integer greater than -2.4.