Q; complete proteins can be found in A.beans,rice,and nuts B.only beef. C.citrus fruits and highly acidic vegetables D.meat,fish poultry,eggs,and dairy

Question

Q; complete proteins can be found in  A.beans,rice,and nuts  B.only beef.  C.citrus fruits and highly acidic vegetables  D.meat,fish poultry,eggs,and dairy

My answer is D but also can be A
not shore,need hellp pls

Ms. Sue · Answer

D seems to be the best answer -- since it asks about "complete" proteins.