Beer is obtained from . . . . . . .

Assertion $A$: Fungi are used to ripen Roquefort cheese.
Reason $R$: $Propionibacterium$ $sharmanii$ is used for Swiss cheese.
Which option is correct for Assertion $A$ and Reason $R$?

$S$ - Statement: Statins are used to lower blood cholesterol levels.
$R$ - Reason: Statins are produced by the yeast $Monascus$ $purpureus$.

Which enzyme is used to remove oily stains in laundry?

Match the following columns:

List-$I$	List-$II$
$(a)$ Aspergillus niger	$(1)$ Lactic acid
$(b)$ Acetobacter aceti	$(2)$ Butyric acid
$(c)$ Clostridium butylicum	$(3)$ Acetic acid
$(d)$ Lactobacillus	$(4)$ Citric acid

.......... are used in detergent formulations and are helpful in removing oily stains from the laundry.