What is the right sequence in the following when there is heart attack?
1. Narrow internal passages in vessels.
2. Cholesterol and rashes on fibrous tissue.
3. Insufficient supply of oxygen and blood.
4. Reaching of blood clots in heart arteries.

A. 1, 2, 3, 4

B. 2, 4, 1, 3

C. 2, 3, 1, 4

D. 4, 2, 1, 3

Answer: Option B