Answer- C
Explanation- I’m a chef trust me
Explanation:
OBESITY can be one because it is basically a disease I guess caused by fay
The system that circulates blood and lymph through the body,consisting of the blood vessels, heart, lymph, and the lymphatic vessels and glands.
It would be the third choice because you can measure the distance, it is able to be achieved and or "attainable" and there is a deadline "this year"