First, there are no options so see below.
What is protein?
Any of numerous, highly varied organic molecules constituting a large portion of the mass of every life form and necessary in the diet of all animals and other nonphotosynthesizing organisms, composed of 20 or more amino acids linked in a genetically controlled linear sequence into one or more long polypeptide chains, the final shape and other properties of each protein being determined by the ide chains of the amino acids and their chemical attachments: proteins include such specialized forms as collagen for supportive tissue, hemoglobin for transport, antibodies for immune defense, and enzymes for metabolism.
What has protein?
Milk and dairy products, meat, eggs, fishes like salmon, nuts like peanuts and walnuts, almond milk or soy milk, tofu, sprouts, whole grains like quinoa, kidney beans, and chickpeas are some of the dietary sources of proteins.