Which combination lists common plant-based protein sources discussed in the lesson?

Legumes, nuts, seeds, and whole grains.

Bacon, sausage, butter, and heavy cream, which are primarily plant-derived protein staples in vegetarian diets.

Pure simple sugars and refined starches because these are the primary plant protein sources consumed globally.

Fish, shellfish, and poultry only, since those are the only protein-rich foods mentioned.