During blood clotting, the \(\ldots\ldots 1 \ldots\ldots\) cause \(\ldots\ldots 2 \ldots\ldots\) to change into \(\ldots\ldots 3 \ldots\ldots\), and this then makes a clot. Which words finish the statement about blood clotting?
- A1 platelets, 2 fibrin, 3 fibrinogen
- B1 platelets, 2 fibrinogen, 3 fibrin
- C1 red blood cells, 2 fibrin, 3 fibrinogen
- D1 red blood cells, 2 fibrinogen, 3 fibrin