Which of the following nutrients is important for the development of the toddler's muscles?Group of answer choicesVitamin DProteinVitamin CCalcium

Protein is important for the development of a toddler's muscles. Here's why:

1. Protein is a macronutrient that is essential for building muscle mass. It is commonly found in animal products, though it is also present in other sources, such as nuts and legumes.

2. During the toddler years, children experience a period of rapid growth and development. During this time, their bodies require more protein to support this growth.

3. Protein helps in the repair of body cells, making of new cells, and growth and development of muscles.

4. It's not just muscles that need protein. It's also essential for the development and function of organs and tissues, the production of antibodies that help your body fight off infections, and more.

So, while Vitamin D, Vitamin C, and Calcium are all important nutrients for toddlers, when it comes to muscle development specifically, Protein is the key.