Tobie is estimating the sum of the expression -50+51.Which reasoning would lead Tobie to the right answer?
A
–50 + 50 is equal to -100 plus -1 is -101.B
–50 + 50 is equal to zero plus -1 is -1.C
–50 + 50 is equal to zero plus 1 is 1.D
–50 + 50 is equal to 100 plus 1 is 101.