Given a plaintext m = 0010011000 and a corresponding ciphertext c = 10110 01110, identify the feedback polynomial for an LFSR of degree 5.
A) 1 + x +x² + x³ + x⁴ + x⁵
B) 1 + x +x² + x³ + x⁵
C) 1 + x +x² + x⁴ + x⁵
D) 1 + x + x³ + x⁴ + x⁵
E) none of the above