JEE Main 2021 Chemistry question

Given below are two statements : One is labelled as Assertion A and other is labelled as Reason R. Assertion A : The dihedral angles in in gaseous phase is 90.2° and in solid phase is 111.5°. Reason R : The change in dihedral angle in solid and gaseous phase is due to the difference in the intermolecular forces. Choose the most appropriate answer from the options given below for A and R.

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