The acid obtained from the fungus $Aspergillus$ $niger$ is .......

Read the following statement having two blanks $(A$ and $B)$:
$A$ drug used for $A$ patients is obtained from a species of the organism $B$. It helps in clearing blood clots inside the blood vessels.
The one correct option for the two blanks is:

. . . . . . are produced by yeast and act by competitively inhibiting the enzyme responsible for the synthesis of cholesterol.

The antibiotic flavicin is obtained from:

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

Which microorganism is used to produce statins, which are used to lower blood cholesterol levels?