Name the scientists who were credited for showing the role of Penicillin as an antibiotic.

Consider the following statements:
$I.$ Yeast used in making bread and beverages is a prokaryotic fungus.
$II.$ Streptokinase is produced by $Streptococcus$ and modified by genetic engineering is used as a clot buster.
$III.$ Lipases are added in detergent for removing only stains from laundry.
$IV.$ Pectinases are used in clearing fruit juices.
Which of the statements given above are correct?

$A$ - Scientist Alexander Fleming discovered the first antibiotic.
$R$ - Methanogens are used for fermenting malted cereals and fruit juices to produce ethanol.

$A$ - The puffed-up appearance of dough is due to the production of $CO_2$ gas.
$R$ - $LAB$ damages the stomach.

$A$ - Aspergillus niger is a bacterium.
$R$ - Lactobacillus is a fungi.

Which of the following pairs is incorrect?