The normal at the point $\left(\mathrm{bt}_1{ }^2, 2 \mathrm{bt}_1\right)$ on a parabola meets the parabola again in the point $\left(\mathrm{bt}_2{ }^2, 2 \mathrm{bt}_2\right)$, then

• A

  $\mathrm{t}_2=\mathrm{t}_1+\frac{2}{\mathrm{t}_1}$
• Correct answer
  B

  $t_2=-t_1-\frac{2}{t_1}$
• C

  $\mathrm{t}_2=-\mathrm{t}_1+\frac{2}{\mathrm{t}_1}$
• D

  $\mathrm{t}_2=\mathrm{t}_1-\frac{2}{\mathrm{t}_1}$

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