Which of the following can cause dyslipidemia?

Dyslipidemia is characterized by abnormal levels of lipids in the blood, which often includes elevated levels of harmful cholesterol types, such as low-density lipoprotein (LDL) cholesterol. An increase in LDL cholesterol is recognized as a primary contributor to dyslipidemia since high levels of LDL are associated with an increased risk of cardiovascular diseases. LDL cholesterol is often referred to as "bad cholesterol" because it can lead to buildup in the arteries, resulting in atherosclerosis and other heart-related issues.

The other choices refer to changes in lipid profiles that do not typically indicate dyslipidemia. A decrease in total cholesterol and triglyceride concentrations generally suggests an improvement in lipid levels, while an increase in high-density lipoprotein (HDL) cholesterol is associated with protective effects on cardiovascular health. HDL is known as "good cholesterol" and helps transport cholesterol away from the arteries. Thus, option B is the only choice that aligns with the definition of dyslipidemia, as it identifies an increase in a harmful lipid component.