Assertion $(A)$: Noble gases have very low boiling points.
Reason $(R)$: All noble gases have general electronic configuration of $ns^2 np^6$ (except $He$).

• A
  Both $(A)$ and $(R)$ are true and $(R)$ is the correct explanation of $(A)$
• B
  $(A)$ is false but $(R)$ is true
• C
  $(A)$ is true but $(R)$ is false
• D
  Both $(A)$ and $(R)$ are true and $(R)$ is not the correct explanation of $(A)$