Akosher diet is an example of a diet that is based on
a.
morals and beliefs
b.
laws and illnesses
c.
health status and preferences
d.
wishes and medications

The answer is option "A.morals and beliefs".

A kosher diet is an example of a diet that is based on "morals and beliefs".

The Kosher Diet is a method for eating that credits to Jewish dietary decides that were first advanced in the Torah. The different standards of Kosher eating are gotten from religious, philosophical, clean, ceremonial or practical reasons. 
The Kosher Diet isn't a weight reduction diet as such, however its emphasis on leafy foods, fish and its absence of refined sugars, flours and high-fat pork items in blend with its blessed respect of sustenance decisions can make it an eating arrange for that backings adhering to a good diet and a healthy relationship to nourishment.

True your body needs vitamins such as protein, vitamin d, fish oil etc

What are the choices?