Given below are two statements: one is labelled as Assertion \((A)\) and the other is labelled as Reason \((R)\). Assertion \((A)\) : \(\mathrm{PH}_3\) has lower boiling point than \(\mathrm{NH}_3\). Reason \((R)\) : In liquid state \(\mathrm{NH}_3\) molecules are associated through vander waal's forces, but \(\mathrm{PH}_3\) molecules are associated through hydrogen bonding. In the light of the above statements, choose the most appropriate answer from the options given below:

1. A Both \((A)\) and \((R)\) are correct and \((R)\) is not the correct explanation of \((A)\)
2. B \((A)\) is not correct but \((R)\) is correct
3. C Both \((A)\) and \((R)\) are correct but \((R)\) is the correct explanation of \((A)\)
4. D \((A)\) is correct but \((R)\) is not correct