The simple formula for the nth term of an arithmetic sequence is an = 6n + 14. what is the explicit formula corresponding to the simple formula?

a. an = 20 + (n - 1)(6)
b. an = 14 + (n - 1)(6)
c. an = 14 + 6n
d. an = 20 + (n)(6)
e. an = 6 + (n - 1)(14)