Assertion (A) Isomers are same compounds with different molecular formula.
Reason (R) Isomers have different arrangement of their constituent atoms in the space.

A. Both A and R are true and R is the correct explanation of A

B. Both A and R are true, but R is not the correct explanation of A

C. A is true, but R is false

D. A is false, but R is true

Answer: Option D