Saccharomycescerevisiae is used for commercial production of

$A$ : After $24\; hours$ toddy becomes unpalatable.
$R$ : Toddy left for a few hours undergoes fermentation.

Antibiotics are produced by

Definitions / Explanation : Fermentors

Citric acid is produced by

Identify the correct statements w.r.t. antibiotics

$(i)$ Fleming, Chain and Florey were awarded the Nobel prize in $1945$
$(ii)$ Antibiotics have greatly improved our capacity to treat deadly diseases
$(iii)$ Penicillin was used to treat American soldiers wounded in World War I