Multi-choice problem: Continue writing the next sentence in this paragraph:

How to make flour
Obtain your grains, seeds, nuts, beans...something to grind to a pulp.
Practically any grain, nut, or seed can be turned into flour. Try exotic items such as quinoa, popcorn, acorns, and peas to the more traditional options like rice, wheat, oats, and barley.

Select from:
A). Or you can try differently colored grains such as oats or rice. They all work well, but you will need to read the ingredient description before deciding on one type of individual..
B). Fresh, whole wheat berries, rye berries, whole oats and the like can often be found at health food stores, sold in bulk. They'll be white, russet, purple or amber-colored..
C). Make sure to choose quinoa flour over white, wheat, or barley. Thick or light grains are not recommended! Do not bake yourself..
D). Look for recipes a little more precise, or make up your own. In the us, there are always many better ways to grind your favorite grain, outside of your kitchen..
B).