Write the next sentence in this paragraph:

How to make twist donuts
In a medium bowl, dissolve the yeast in the warm water.
Water should warm-at least 98 f (37 c)-but not boiling
Add the margarine or butter, sugar, salt, and warm milk to the yeast mixture; mix until smooth.
Milk shouldn't be too hot , 30 seconds in the microwave is just fine.

Choose your answer from:
(I) There should be no lumps in the dough. Add the vanilla extract and blend to combine, pausing at the bottom when the dough begins to clump..
(II) The serving size will be roughly 2 oz. Chill the mixture in the refrigerator until thick..
(III) Add flour to the mixture and mix for 30 seconds. Mixing can be done with a dough mixer or an electric mixer..
(IV) In a pinch, a spatula might also work as well. Be careful; the milk for crunch is warm (no-smoking at 200 f), but very hot (crash or rising)..
(III)