Statement-$I$: Thermostable $\text{DNA}$ polymerase is isolated from $\text{Thermus aquaticus}$.
Statement-$II$: $\text{Taq}$ $\text{DNA}$ polymerase is inactive at high temperature $(72^{\circ}\text{C})$.

• A
  Both Statement-$I$ and Statement-$II$ are incorrect.
• B
  Statement-$I$ is correct but Statement-$II$ is incorrect.
• C
  Statement-$I$ is incorrect but Statement-$II$ is correct.
• D
  Both Statement-$I$ and Statement-$II$ are correct.