1 . The factor of 4x4+1 is

• A. $\left(2x^2+2x-1\right)\left(2x^2-2x+1\right)$
• B. $\left(2x^2+2x+1\right)\left(2x^2-2x+1\right)$
• C. $\left(2x^2+2x-1\right)\left(2x^2-2x-1\right)$
• D. $\left(2x^2+2x+1\right)\left(2x^2-2x-1\right)$

Answer: Option B

Explanation: