Give below are six sentences four of which are jumbled. The first and the last sentences are given. Pick the option that gives the logically correct order of the four sentences.

S-1: Professor Mike believes that research should focus on disease prevention rather than cure.​

A: Disease prevention must be approached as though it were a war.

B: Germs that cause illness are as destructive as the Nazis.

C: But preventive measures taken at the individual level will not be effective in fighting the diseases.

D: In order to fight against deadly diseases, international co-operation and general knowledge are required.

S-6: These can only be eradicated if the world adopts a scientific viewpoint.