The first 5 numbers of a sequence are shown below. Which of the following functions produces the sequence with n: {1, 2, ..., n} ?

43, 50, 57, 64, 71,...
A.
f(n) = 43 - 7n
B.
f(n) = 7n + 36
C.
f(n) = 7n + 43
D.
f(n) = 36 - 7n