The first four terms of a sequence are shown below:

8, 5, 2, −1

which of the following functions best defines this sequence? (5 points)

a
f(1) = 8, f(n + 1) = f(n) + 3; for n ≥ 1

b
f(1) = 8, f(n + 1) = f(n) − 5; for n ≥ 1

c
f(1) = 8, f(n + 1) = f(n) + 5; for n ≥ 1

d
f(1) = 8, f(n + 1) = f(n) − 3; for n ≥ 1