Multi-select problem: How does the next paragraph end?

How to clarify stock
Allow your stock to simmer until the soup's fat floats to the surface.
As you let your stock simmer, the fat will rise to the top creating a foamy buildup.
If there is an excess of foam or fat buildup, it's possible that you have your heat turned too high.

Select from the following. [i] Rest your stockpot on a counter and wait a few minutes for the fat at the top to drain completely and the liquid below separate from your stock. Lower the heat and let the stock simmer for 1 minute. [ii] In that case, skim off the fat from the top and place it back in the pot with the stock on medium heat. Continue simmer until the fat bubbles and slides off. [iii] After giving your stock a gentle stir, you should remove it from the stove. Keep the stock cool, but soft, for another 30 to 60 minutes. [iv] Stock needs to be slowly simmered over a long period of time, not boiled. Typical stocks should be simmered anywhere from 4 to 6 hours long.
[iv]