Write a polynomial that fits the given description.
The polynomial has four terms and can be factored by grouping.
Choose the correct answer below.
O A. a2 + 2b - 3ab + b2
OB. a3 + 7a2+ 4a + 5
OC. a2+ ab + ac + b2
OD. a3-5a2 + 3a - 15