Explanation:
a) This is a retrospective observational study.
b) This is an appropriate choice due to the rareness of MS.
c) The subjects were US military personnel, some of which had developed MS.
d) The variables were the vitamin D blood levels and whether or not the person developed MS.
The percentage it like 70 or 80 %
The option which is not one of the five vegetable categories is C. leafy.
Here are the five vegetable categories:
1. dark-green: broccoli, spinach, kale...
2. red and orange: tomatoes, carrots, squash, pumpkin, sweet potatoes...
3. beans and peas
4. starchy: corn, potatoes, green peas...
5. other: zucchini, peppers, Brussel sprouts...
Answer:
a women that stress a lot
Explanation: