In which vessels are microbes grown for production in the industrial field?

Which of the following is used as a 'clot buster' to remove clots from the blood vessels of patients who have undergone myocardial infarction?

$A$: Statins are products of the fermentation activity of yeast.
$R$: Statins and mevalonate compete for the same active site on the enzyme involved in cholesterol synthesis.

Neomycin is extracted from:

Which of the following bacteria is used in the production of butyric acid?

For the commercial and industrial production of Citric Acid, which of the following microbes is used?