Identify the blank spaces $a, b, c$ and $d$ given in the following table and select the correct answer.

Type of microbes	Scientific name	Commercial product
Bacterium	$a$	Clot buster enzyme
$b$	Aspergillus niger	Citric acid
Fungus	Trichoderma polysporum	$c$
Bacterium	$d$	Butyric acid

• A
  $a$ - Streptococcus,$b$ - Fungus,$c$ - Cyclosporin-$A$,$d$ - Clostridium butylicum
• B
  $a$ - Clostridium butylicum,$b$ - Bacterium,$c$ - Cyclosporin-$A$,$d$ - Lactobacillus
• C
  $a$ - Propionibacterium sharmanii,$b$ - Bacterium,$c$ - Streptokinase,$d$ - Penicillium roqueforti
• D
  $a$ - Microsporum,$b$ - Fungus,$c$ - Tartaric acid,$d$ - Streptococcus