Given below are two statements: one is labelled as Assertion $A$ and the other is labelled as Reason $R$.
Assertion $A:$ When you squeeze one end of a tube to get toothpaste out from the other end,Pascal's principle is observed.
Reason $R:$ $A$ change in the pressure applied to an enclosed incompressible fluid is transmitted undiminished to every portion of the fluid and to the walls of its container.
In the light of the above statements,choose the most appropriate answer from the options given below:

• A
  $A$ is not correct but $R$ is correct.
• B
  $A$ is correct but $R$ is not correct.
• C
  Both $A$ and $R$ are correct and $R$ is the correct explanation of $A$.
• D
  Both $A$ and $R$ are correct but $R$ is $NOT$ the correct explanation of $A$.