Which equation is true?
A. (4 = 8) = 1 = 8 = (4 : 1)
O B. (4 - 8) + 1 = 4 - (8 + 1)
C. (4 - 8) - 1 = 4 - (8 - 1)
D. (4 + 8) + 1 = 4+ (8 + 1)