Which one of the following is the main reason of heart attack?

دل کے دورے کی بنیادی وجہ درج ذیل میں سے کون سی ہے؟

Low blood pressure

Anaemia

Dehydration

Cholesterol

High levels of cholesterol can lead to the buildup of plaques in the arteries.
It causing atherosclerosis, which is a primary factor in heart attacks.