URGENT! WILL GIVE BRAINLIEST!!
m + b, 2m + b, 3m + b, 4m + b, ... is an infinite sequence. This sequence may be defined in many ways. Which is not a correct way to define this sequence?

A) f(x) = mx + b for x = {1, 2, 3, ...}

B) f(x) = 2m + b + m(x − 2) for x = {1, 2, 3, ...}

C) an = m − b + m(n − 1) for n = {1, 2, 3, ...}

D) a1 = m + b and an + 1 = an + m for n = {1, 2, 3, ...}