<u>Answer-</u>

<u>Solution-</u>
Rational Root Theorem-

All the potential rational roots are,

The given polynomial is,

Here,

The potential rational roots are,


From, the given options only
satisfies.
The answer is A. one of the zeros is x = -1

x² - x - 12 ≠ 0
x² - 4x + 3x - 12 ≠ 0
x (x - 4) + 3 (x - 4) ≠ 0
(x + 3)(x - 4) ≠ 0
x ≠ -3 or x ≠ 4
(B)