A pregnant patient who avoids dairy products asks the nurse for alternative sources of calcium. Which of the following responses by the nurse is most appropriate?

A. While supplements can help meet calcium needs, dietary sources are preferred because they provide additional nutrients and are better absorbed. Supplements should only be used when dietary intake is inadequate or prescribed by a healthcare provider. B. These are excellent nondairy sources of calcium that can help meet the daily requirements during pregnancy. They also provide other nutrients such as protein, magnesium, and omega-3 fatty acids, supporting both maternal bone health and fetal development. C. Many plant-based and fortified foods contain significant amounts of calcium. Educating clients on diverse calcium sources supports better dietary planning and prevents nutritional misconceptions. D. Red meat and whole grains are not significant sources of calcium. While they offer other nutrients like protein and iron, relying on them for calcium intake would not meet the recommended dietary requirements during pregnancy.