Identify the pattern for the following sequence. Find the next three terms in the sequence.
-15, -11, -7, -3,
a. Subtract 4; -7, -11, -15
b. Add 4, 2, 6, 10
C. Subtract 4, 1, 5, 9
d. Add 4; 1, 5, 9
Please select the best answer from the choices provided