If $1+2 i$ is a root of the equation $x^4-3 x^3+8 x^2-7 x+5=0$, then sum of the squares of the other roots is

• A

  0
• B

  2+i
• Correct answer
  C

  -4-4i
• D

  $\frac{8}{3}$

Hence, the correct answer is option: 'C'.