question_answer

The following statement contains some of the events that lead to a 'heart attack'.

(i) Blood clot that breaks, loose and passes along blood vessel.

(ii) Region of heart muscle suffers a myocardial infarction.

(iii) Narrow branch of coronary artery becomes blocked by thrombus.

(iv) Thrombus forms on inner surface of coronary artery.

The correct sequence of these events is:

A) (i), (iv), (ii), (iii)

B) (i), (iv), (iii), (ii)

C) (iv), (i), (ii), (iii)

D) (iv), (i), (iii), (ii)