The large holes in Swiss cheese are due to production of a large amount of $...a...$ by a bacterium $...b...$ . Here $a$ and $b$ refers to

  • A
    $a – CO_2,b$ - Penicillium roqueforti
  • B
    $a – CO_2,b$ - Propionibacterium sharmanii
  • C
    $a – CO_2,b$ - Penicillium notatum
  • D
    $a – CO_2,b$ - Saccharomyces cerevisiae

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