The production of vinegar from alcohol is caused by . . . . . . .

The antibiotic penicillin was used to treat wounded $.....i....$ during $.....ii....$.

The bottled juices are clarified by the use of which enzymes?

Which scientists established the full potential of penicillin as an effective antibiotic by improving its production?

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

Fill in the blanks:
$(I)$ Ethanol is produced by $...a...$
$(II)$ Large scale production of beverages in industries is done in very large vessels called $...b...$
$(III)$ Penicillin was discovered by $...c...$
$(IV)$ $LAB$ checks disease-causing microbes in $...d...$
Which of the following options correctly identifies $a$ to $d$?