$\begin{array}{1 1}\text{a. Both Assertion and reason are true and Reason is the correct explanation of Assertion.} \\ \text{b.Both Assertion and reason are true, but Reason is not the correct explanation of Assertion.} \\ \text{c.Assertion is true, Reason is false.} \\ \text{d.Both Assertion and reason are false.}
\end{array} $