Use the recursive definition to find the first five terms of the arithmetic
sequence it defines.
A(n) = A(n-1)+4 when A(1) - 5
a. 5, 6, 7, 8, 9
b. 4, 8, 12, 16, 20
c. 5,9, 13, 17,21
d. 4, 9, 14, 19, 24