This is a question with answer options. Goal: How to remove white rings that form on wooden flooring?

Which of the following methods is more reasonable for accomplishing this goal?

Pick your answer from:
(A). Use a mixture of vinegar and water and apply lightly to the rings, scrub with the grain of the wood until they release;
(B). Use a mixture of vinegar and water and apply lightly to the rings, scrub against the grain of the wood until they release;...I think the answer is
(A).