The first antibiotic isolated was:

Match the following columns.

Column $I$	Column $II$
$1$. $Streptococcus$ $pneumoniae$	$(A)$ acetic acid
$2$. $Aspergillus$ $niger$	$(B)$ butyric acid
$3$. $Clostridium$ $butyricum$	$(C)$ streptokinase
$4$. $Acetobacter$ $aceti$	$(D)$ citric acid

Statement $1$: Statins are blood cholesterol-lowering agents.
Statement $2$: They act by competitively inhibiting the enzyme responsible for the synthesis of cholesterol.

How are microbes useful in fermented beverages?

Which of the following microorganisms is responsible for the production of citric acid?

Which fermented beverage has the maximum alcohol content?