Identify the vitamin classification. why are vitamins an important part of daily nutrient intake?

Identify the vitamin classification. Why are vitamins an important part of daily nutrient intake?
Fat-soluble vitamins: A, D, E and K
Water-soluble vitamins: B-B-6, B-12, C.
A diet rich in a variety of fresh vegetables, fruits, fortified dairy products, whole grains, dried beans and lentils and lean meat and fish helps you get all the vitamins you need.
Vitamins have a specific role to play in the natural wear and tear of the body.

Ithink the correct answer would be that since the disease is passed by a hand shake and can be cured with antibiotics that it could be an infection. an example could be that once when i was working in a bush camp, i got blood poisoning from blood blisters that got infected. our cook did not wash his hands after going to the bathroom and he passed staphyloccus on to the crew he fed. one other person also got a bad similar infection on the side of his face. i had to be rescued by helicopter and taken to the hospital so i wouldn't die!