Assertion: In the body centred cubic structure of CsCl the arrangement of `Cl^(-)` ions is primitive
Reason: In CsCl, the `Cs^(+)` ion remains at the body centred position and `Cl^(-)` ions at the corners.
A. If both assertion and reason are correct and reason is correct explanation for assertion
B. If both assertion and reason are correct but reason is not correct explanation for assertion
C. If assertion is correct but reason is incorrect
D. If both assertion and reason are incorrect