Streptococcus thermophilus and Lactobacillus bulgaricus are being used for the production of

Which organism is used to ripen Roquefort cheese?

Which vitamin content is increased by Lactic Acid Bacteria $(LAB)$ in milk?

Which of the following are the main benefits of $LAB$?
$I.$ Increase vitamin-$B_{12}$ amount,thus increasing nutrient quality of milk.
$II.$ Checks disease-causing microbes in the stomach.
Choose the correct option.

The large holes in Swiss cheese are made by a

Which microorganism is used to produce Swiss cheese?