Question

A healthful vegetarian diet includes protein from a combination of _____.

grains and legumes

grains and fish

rice and eggs

beans and peas

Answer 1

process of elimination

fish is not vegetarian so B is automatically out
beans and peas are both considered legumes which makes A a better answer than D
rice and eggs is a little too specific (plus rice is already included within "grains")

making grains and legumes the most accurate, inclusive answer