Given below are two statements:
Statement $I$: When the speed of a liquid is zero everywhere,the pressure difference at any two points depends on the equation $P_1-P_2=\rho g(h_2-h_1)$.
Statement $II$: In the venturi tube shown,$2gh=v_2^2-v_1^2$.
In the light of the above statements,choose the most appropriate answer from the options given below.

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