Which of the following is an example of a religious dietary practice?

Choosing kosher foods is an example of a religious dietary practice because it follows the dietary laws outlined in Jewish tradition, known as kashrut. These laws dictate what foods are permissible to eat, how food should be prepared, and the separation of meat and dairy products. Adhering to these dietary guidelines is a significant aspect of Jewish religious observance and identity.

In contrast, eating dessert before the main course or chewing slowly does not relate to any specific religious beliefs or practices; rather, they are simply personal choices regarding eating habits. Eating goose for Christmas dinner may be a tradition for some, but it is not universally regarded as a religious dietary practice since such customs can vary widely among different cultures and individuals celebrating the holiday. Thus, kosher foods are distinctly tied to religious beliefs, making this choice the correct answer.