Tick out the weed fungi for lab

Answer: Option A

Aspergillus is the weed fungi for lab from the given options.
Aspergillus niger is called the "weed of microbiology lab" due to its ubiquitous nature. Its spores are found almost everywhere.
It causes diseases known as "Black molds" for example "black mold of onion".
Aspergillus species are used in the fermentation industry, but they are also responsible for various plant and food secondary rot, with the consequence of the possible accumulation of mycotoxins.