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