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 $d$?

• A
  $a$ - virus, $b$ - fermentors, $c$ - Alexander Fleming, $d$ - intestine
• B
  $a$ - yeast, $b$ - fermentors, $c$ - Alexander Fleming, $d$ - stomach
• C
  $a$ - bacteria, $b$ - fermentors, $c$ - $S$. Waksman, $d$ - chest
• D
  $a$ - bacteria, $b$ - fermentors, $c$ - $S$. Waksman, $d$ - liver