Find the First Term, the Common Difference, and Give a Recursive

Multiple Choice

Find the first term, the common difference, and give a recursive formula for the arithmetic sequence.
-6th term is -17; 15th term is -53

A) a1 = 3, d = -4, an = an-1 - 4
B) a1 = 3, d = 4, an = an-1 + 4
C) a1 = 7, d = 4, an = an-1 + 4
D) a1 = 7, d = -4, an = an-1 - 4