Assertion: Mercurous compounds are diamagnetic.
Reason: Two `Hg^(o+)` species which have `6s^1` configuration are bonded together using s-electrons.
A. If both (A) and (R) are correct and (R) is the correct explanation of (A).
B. If both (A) and (R) are correct, but (R) is not the correct explanation of (A).
C. If (A) is correct, but (R) is incorrect.
D. If (A) is incorrect but (R) is correct.