Name the scientists who were credited for showing the role of Penicillin as an antibiotic.

Match the following columns:

List-$I$	List-$II$
$(a)$ Bacteria	$(1)$ Saccharomyces cerevisiae
$(b)$ Mucor	$(2)$ $Bt$ cotton
$(c)$ Yeast	$(3)$ Penicillium notatum
$(d)$ Transgenic organism	$(4)$ Lactobacillus

Match column $I$ with column $II$ and select the correct option using the codes given below.

Column-$I$	Column-$II$
$(A)$ Citric acid	$(i)$ Trichoderma
$(B)$ Cyclosporin $A$	$(ii)$ Clostridium
$(C)$ Statins	$(iii)$ Aspergillus
$(D)$ Butyric acid	$(iv)$ Monascus

Who conducted the first study identifying $Bombykol$ as a pheromone?

Which of the following microbes is $\text{NOT}$ involved in the preparation of household products?
$A.$ Aspergillus niger
$B.$ Lactobacillus
$C.$ Trichoderma polysporum
$D.$ Saccharomyces cerevisiae
$E.$ Propionibacterium sharmanii
Choose the correct answer from the options given below:

Which of the following pairs is incorrect?