Assertion : In aDNA molecule, A-T rich parts melt before G-C rich parts.
Reason : In between A and T there are three H-bond, whereas in between G and C there are two H-bonds
A. If both assertion and reason are true and the reason is a correct explanation of the assertion.
B. If both assertion and reason are true and the reason is not a correct explanation of the assertion.
C. If the assertion is true but reason is false.
D. If both assertion and reason are false.