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

How to make peanut butter smoothies
Gather your smoothie making supplies.
This plain peanut butter smoothie recipe can be easily modified. For example, you could easily add other fruits, like strawberry or concord grapes, which are often used in jellies.

Pick from: A). Try grabbing some fruit, like apples or bananas. Or, you could also consider blending fruits with a mix of water, milk, or yogurt in a blender.; B). For a protein and carbohydrate boost, you could use half whole strawberries or blueberries as a treat mix. Strawberries are much lower in calories than blueberries.; C). This could cause your smoothie to taste like a peanut butter and jelly sandwich! Add ingredients to the blender. But before you do, make sure the blender is unplugged to prevent accidentally pressing a button before its lid is on and making a mess.; D). However, you could also substitute banana or honey for something at the store like jam or yogurt. You'll need : 1 medium or one large cup (240 ml) of powdered milk 1 cup (260 ml) of egg white Add warm water.;
C).