Given below are two statements: One is labelled as Assertion $\mathbf{A}$ and the other is labelled as Reason $\mathbf{R}$

Assertion $\mathbf{A}$ : Zero orbital overlap is an out of phase overlap.

Reason $\mathbf{R}$ : It results due to different orientation / direction of approach of orbitals.

In the light of the above statements, choose the correct answer from the options given below

1. A Both A and R are true and R is the correct explanation of A Correct answer
2. B Both A and R are true but R is NOT the correct explanation of A
3. C A is true but R is false
4. D A is false but R is true