Yeast is employed for the production of

Which of the following products cannot be obtained with the help of the yeast $Saccharomyces$ $cerevisiae$?

Identify the correct pair:

Which of the following bacteria is used to remove the bitterness of tea leaves?

Match the following bacteria/fungi of Column $I$ with their commercial products of Column $II$.

Column $I$	Column $II$
$A$. Lactobacillus	$p$. Butyric acid
$B$. Aspergillus niger	$q$. Acetic acid
$C$. Acetobacter aceti	$r$. Lactic acid
$D$. Clostridium butylicum	$s$. Citric acid

Select the code for the correct answer from the options given below.

Which microorganism is used to produce the enzyme $Streptokinase$?