Which statement describes a characteristic common to autoimmune diseases? A. They commonly affect women.
B. They are easily passed by bacteria from one person to another.
C. It is rare to have more than one at a time.
D. They most commonly harm the endocrine system.

D.

immune diseases are where your immune system attacks itself. most commonly it attacks the brain or the endocrine system first, as a way to take complete control.

Explanation:

A. males have a higher risk of getting an autoimmune disease.

B. autoimmune diseases are not passed, they are not contagious, it something you are born with or develop over time with a problem in cells. they can be triggered by food, medicine, anything really.

C. it is not rare to have more than one, many people who have one end up developing more over time.

this age may represent the age of the earth's accretion, of core formation, or of the material from which the earth formed. this dating is based on evidence from radiometric age-dating of meteorite material and is consistent with the radiometric ages of the oldest-known terrestrial and lunar samples.

d. planting trees

the trees take in carbon to make oxygen.