The answer to your specific question is simple…

Your second repeating group is showing ‘All Review Level OS’, and you only have 3 of those (according to your last post - ‘Poor’, 'Average, ‘Good’), so that’s exactly what should be happening (how could it show more options than exist in your app?)

in Repeating Group it only demonstrates Drop down A repeatedly.

Yes… that’s the whole point of a Repeating Group (the clue is in the name)… whatever elements are in one cell will be ‘Repeated’ in every cell (obviously they can be populated with dynamic data unique to each cell, or have conditional formatting based on the cell content - but the contents of each cell is ‘Repeated’).

If you’re still struggling to understand my answer to your previous post, here’s a working example that might help you:

Meal Rating (bubbleapps.io)