The answer is Ultraviolet Light
The easiest way for us to obtain a sustainable amount of Vitamin D is by exposing our self to morning sunlight ( which contain ultraviolet light)
Often time, we don't consume enough vitamin D and our body need to get it from our bones, and in order to do that, it need to be activated through enough exposure from sunlght
The answer is B (An app on your smartphone that tracks the nutritional status of foods you eat)
Answer:
Socialization
Explanation: Socialization is when people get into different groups to talk about their beliefs, values, behaviors, backgrounds, biology, and preferences.
It prevents you from gaining a lot of weight, so you stay healthy and don't get as many health problems.
