First of all, what do you mean when u say 20 options.
Also, here is your answer:
Chronic disease<span>: A </span>disease<span> that persists for a long time. A </span>chronic disease<span> is one lasting 3 months or more, by the definition of the U.S. National Center for Health Statistics. </span>Chronic diseases<span> generally cannot be prevented by vaccines or cured by medication, nor do they just disappear.
So, it is B. </span><span>Lasts for a long time </span>
Answer:
mutation
Explanation:
mutation modifies an organism's genetic makeup
