The more cholesterol and fat a person eats from his diet, the higher his serum cholesterol index.  There is a boundary in which the two are proportional.  Beyond this threshold, even if the intake of cholesterol and fat increases dramatically, serum cholesterol indicators will only increase slowly.  This limit is the same for all people, about the european per capita cholesterol and fat intake.
Which of the following options can exit according to the above definition?
Europeans have higher serum cholesterol levels than normal