Given below are two statements: one is labelled as Assertion $A$ and the other is labelled as Reason $R$.
Assertion $A$ : Boric acid is a weak acid.
Reason $R$ : Boric acid is not able to release $H^{+}$ ion on its own. It receives $OH^{-}$ ion from water and releases $H^{+}$ ion.
In the light of the above statements,choose the most appropriate answer from the options given below.

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