Which one of the following pairs is wrongly matched?

$Assertion (S)$: Ernest Chain and Howard Florey were awarded the Nobel Prize in $1948$.
$Reason (R)$: Lactic acid is produced by the fungus $Aspergillus$ $niger$.

Arrange the following in the decreasing order (most important first) of their importance,for the welfare of human society. Give reasons for your answer.
Biogas,Citric acid,Penicillin and Curd

One of the useful activities of several bacteria is

Which option represents the correct matching?

Column-$I$	Column-$II$
$1.$ Saccharomyces cerevisiae	$A.$ Production of Riboflavin
$2.$ Penicillium notatum	$B.$ Bread making
$3.$ Ashbya gossypii	$C.$ Production of Sterins
$4.$ Rhizopus nigricans	$D.$ Penicillin
$5.$ Trichoderma polysporum	$E.$ Hydroxy progesterone
$6.$ Monascus purpureus	$F.$ Cyclosporin-$A$

Find the mismatched pair.