John is in a club that collects annual dues. In the first year that he was a member, he paid $20 in club dues. However, the club dues increase by $2 each year. Identify the function that describes the relationship between the number of years that John has been a member of the club and the dues he pays that year. a. f(n) = 20 + 2(n + 1)

b. f(n) = 20 + 2(n – 1)

c. f(n) = 20 + 2(n – 2)

d. f(n) = 20 + 2n