Dwane needs to be careful about eating carbohydrates. what type of diet could he be following?
a. lactose-free
b. vegetarian
c. kosher
d. diabetic

The answer is : D. diabetic

Lactose-free diet is to avoid dairy products, Vegetarian Diet is to avoid meat (vegetarian diet does not guarantee low carbohydrates, in fact major source of our carbohydrates come from plants such as rice and potato)
, Kosher diet is to follow Jewish rules.

in diabetic diet, you have to watch your blood sugar which mean that you have to keep your diet low in carbs. 

If Dwane needs to be careful about eating carbohydrates he should be following a diabetic diet most likely - D.

The reason for this is that vegetarian diets are full of carbohydrates and this can then pose a big problem considering he needs to be wary of them. If, on the other hand, he should be eating a lot of carbohydrates, then the vegetarian option is for him - B.