Person ages of becoming very important to maintain what? heart rate , muscle mas, reasoning, or flexibility and range of motion

As you sit in the library with your friend studying for your weekly quiz on the integumentary system, you come upon an article about the hazards of prolonged exposure to the sun's rays. your curious nature leads you to research the subject further. you're fascinated to learn that minimal exposure to the sun allows you skin to manufacture vitamin d, which is important to maintain homeostasis. you also read that although sunscreen can protect you from the ultraviolet (uv) rays of the sun, some medications can actually increase a person's sensitivity to the sunlight.

You should never drive a car if you are a.taking cold medication b. suffering from the flu c. drinking alcohol d. all the above

How can people get cancer? what types of cancer are there? plz i’ll mark u brainliest