Final answer:
HDLs remove cholesterol from cells and return it to the liver for excretion, reducing the risk of heart disease.
Step-by-step explanation:
The statement is true. High-density lipoproteins (HDL) collect cholesterol from cells and transport it back to the liver for excretion. HDLs are often referred to as 'good' cholesterol because they help remove excess cholesterol from the body. By doing so, HDLs aid in reducing the risk of developing heart disease.