Combine like terms to simplify the expression:
7x + 3y – 2 + 6x – 1 – y2
A.–2y3 + 13x – 3
B.–y2 + 3y + 13x – 3
C.–y2 + 3y + 42x2 –3
D.–3y3 + 13x2 – 3
7x + 3y – 2 + 6x – 1 – y2
A.–2y3 + 13x – 3
B.–y2 + 3y + 13x – 3
C.–y2 + 3y + 42x2 –3
D.–3y3 + 13x2 – 3