A vegetarian eats rice for lunch and beans for dinner. Which analysis best evaluates whether this pattern provides adequate essential amino acids?

Inadequate — complementary proteins must be eaten simultaneously at the same meal to be effective

Inadequate — grains and legumes never complement each other because they both lack the same essential amino acids

Adequate — rice and beans are complementary; consuming them at different meals across the same day typically supplies complementary essential amino acids to meet needs

Adequate only if the same quantities are consumed at each meal every single day without variation