[Solution by Claude - not from source] $Lactobacillus$ (curd), $Saccharomyces$ (bread) and $Propionibacterium\ sharmanii$ (Swiss cheese) are used in household products. $Aspergillus\ niger$ (citric acid) and $Trichoderma\ polysporum$ (cyclosporin A) are used industrially. Answer (2), as in the answer key.