Given below are two statements: one is labelled as Assertion A and the other is labelled as Reason R.
Assertion A: Physical properties of isotopes of hydrogen are different.
Reason: Mass difference between isotopes of hydrogen is very large.
In the light of the above statements, chose the correct answer from the options given below:
(1) A is false but R is true.
(2) Both A and R are true and R is the NOT the correct explanation of A.
(3) A is true but R is false.
(4) Both A and R are true and R is the correct explanation of A