The roots $\alpha, \beta$ of the equation $x^2-6(k-1) x+4(k-2)=0$ are equal in magnitude but opposite in sign. if $\alpha>\beta$, then the product of the roots of the equation $2 \mathrm{x}^2-\alpha \mathrm{x}+6 \beta(\alpha+1)=0$ is

• A

  12
• B

  -12
• C

  16
• Correct answer
  D

  -18

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