If the equation of the pair of lines passing through $(1,1)$ and perpendicular to the pair of lines $2 x^2+x y-y^2-x+2 y-1=0$ is $a x^2+2 h x y+b y^2+2 g x+3 y=0$, then $\frac{b}{a}=$

• A

  $\mathrm{g} / \mathrm{h}$
• Correct answer
  B

  $2(g+h)$
• C

  $2(g-h)$
• D

  gh

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