What is the pathophysiology of dyslipidemia?

Increased LDL cholesterol and decreased HDL cholesterol are strongly related to atherosclerosis.
Dyslipidemias are always dyslipoproteinemias.
Primary hyperchylomicronemia is caused by a deficiency in lipoprotein lipase activity.
Secondary dyslipidemias are more frequent than primary dyslipidemias.
a) Only I and II are correct.
b) Only II and III are correct.
c) Only III and IV are correct.
d) All statements are correct.