GMAT Critical Reasoning (CR) | Re: Patients who suffer from high levels of LDL cholesterol are at risk of

Patients who suffer from high levels of LDL cholesterol are at risk of heart disease and heart attacks. Patients can lower their levels of LDL cholesterol through lifestyle changes and drug treatment.Lifestyle changes can lower cholesterol levels andare necessary to maintain healthy cholesterol levels , although some patients with the highest levels of cholesterol must undergo drug treatment to bring their cholesterol to a manageable level.

If the statements above are true, then which of the
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