Match List - I with List - II.

Choose the correct answer from the options given below:

(A)-(III), (B)-(I), (C)-(II), (D)-(IV)

The correct answer is Option (4) → (A)-(III), (B)-(I), (C)-(II), (D)-(IV)

A. Bacillus thuringiensis (Bt) is indeed widely used as a natural insecticide in contemporary agriculture and pest control. This bacterium produces crystalline proteins (known as Bt toxins or Cry proteins) that are toxic to certain insect larvae when ingested. These proteins specifically target the digestive systems of insects, making them highly effective against a range of pests.

B. Microbes especially yeasts have been used from time immemorial for the production of beverages like wine, beer, whisky, brandy or rum. For this purpose the same yeast Saccharomyces cerevisiae used for bread-making and commonly called brewer’s yeast, is used for fermenting malted cereals and fruit juices, to produce ethanol.

C. Cyclosporin A is a bioactive molecule that is widely used as an immunosuppressive agent in organ transplant patients. It plays a crucial role in preventing organ rejection by suppressing the immune system's response to the transplanted organ. This important medication is derived from the fungus Trichoderma polysporum.

D. Aspergillus niger is a fungus used in the production of citric acid, which is widely used in the food and beverage industry.