Match List-I with List-II:

List-I	List-II
Products	Organisms
(A) Statin (B) Clot buster (C) Swiss cheese (D) Cyclosporin-A	(I) Streptococcus (II) Trichoderma (III) Monascus (IV) Propionibacterium

Choose the correct answer from the options given below:

The correct answer is (A)- (III), (B)- (I), (C)- (IV), (D)- (II).

Let us understand the connection between each product in List-I and its producing organism in List-II step-by-step:

(A) Statin:
Statins are blood-cholesterol lowering agents. They act by competitively inhibiting the enzyme responsible for the synthesis of cholesterol. Statins are commercially produced by the yeast Monascus purpureus. Therefore, (A) matches with (III).

(B) Clot buster:
Streptokinase is used as a 'clot buster' for removing clots from the blood vessels of patients who have undergone myocardial infarction. It is produced by the bacterium Streptococcus. Therefore, (B) matches with (I).

(C) Swiss cheese:
The large holes in Swiss cheese are due to the production of a large amount of carbon dioxide (${\mathrm{CO}}_2$) by a bacterium named Propionibacterium shermanii. Therefore, (C) matches with (IV).

(D) Cyclosporin-A:
Cyclosporin-A is used as an immunosuppressive agent in organ-transplant patients. It is produced by the fungus Trichoderma polysporum. Therefore, (D) matches with (II).

Combining all the correct matches:
(A) - (III), (B) - (I), (C) - (IV), (D) - (II)