To solve this problem, we need to identify the wrongly matched pair of microbe-product-application. Let's analyze each option:$\newline \bullet$Option 1: Trichoderma polysporum - Cyclosporin A - Immunosuppressive drug$\newline$ - Trichoderma polysporum is known for producing Cyclosporin A, which is used as an immunosuppressive drug.$\newline$ - This pair is correctly matched.$\newline \bullet$Option 2: Monascus purpureus - Statins - Lowering of blood cholesterol$\newline$ - Monascus purpureus produces statins, which are used to lower blood cholesterol levels.$\newline$ - This pair is correctly matched.$\newline \bullet$Option 3: Streptococcus - Streptokinase - Removal of clot from blood vessel$\newline$ - Streptococcus is known for producing Streptokinase, which is used to remove clots from blood vessels.$\newline$ - This pair is correctly matched.$\newline \bullet$Option 4: Clostridium butylicum - Lipase - Removal of oil stains$\newline$ - Clostridium butylicum is not known for producing lipase for the removal of oil stains.$\newline$ - This pair is incorrectly matched.$\newline$Therefore, the wrongly matched pair is Option 4: Clostridium butylicum - Lipase - Removal of oil stains.$\newline$This corresponds to the correct option, which is Option 4.