12 grams
the label has the grams of components for the serving size (1/2 cup). according to the top of the label, there are 4 servings in the container. because there are 4 servings and the label is for 1, we have to multiply the grams of protein for 1 serving (3 grams) by 4 (total amount of servings in entire container) so:
3 x 4 = 12
there are 12 grams of protein in the entire container