What procedures out of these can help prevent heart attack?

The correct options are
A Open heart surgery
C Angioplasty
D Heart transplant

• Open heart surgery is done by traditional method of manually opening heart and operating it. It is done for replacing blocked blood vessel with a healthy vein. Bypass surgery falls under open heart surgery. Also, heart transplant is done by open heart surgery.
• Angioplasty is a procedure used to widen blocked or narrowed blood vessels that lead to heart muscles.

Dialysis is an artificial process used for filtering blood in the human body. This treatment is introduced to a patient when their kidneys can no longer perform this function.