JEE Main 2023 Chemistry question

Given below are two statements, one is labelled as Assertion A and the other is labelled as Reason R. Assertion A : Isotopes of hydrogen have almost same chemical properties, but difference in their rates of reactions. Reason R: Isotopes of hydrogen have different enthalpy of bond dissociation. In the light of the above statements, choose the most appropriate answer from the options given below:

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