Which of the following is a good source of protein?

• A. Minced beef
• B. Rice
• C. Apple
• D. Carrot

Answer: (A)

Protein sources are valued for how much protein they provide and whether the protein includes all the essential amino acids the body can’t make on its own. Minced beef fits this well: it’s high in protein per serving and contains all the essential amino acids in the right proportions, which means it’s a high-quality, complete protein that supports growth and tissue repair efficiently. The other items mainly supply carbohydrates or fiber and contain only small amounts of protein, with plant foods often lacking one or more essential amino acids unless eaten in specific combinations. So minced beef stands out as the best protein source among these options.