Which of the following food items are produced through fermentation by the microorganisms?
I. Idli 
II. Dosa
III. Toddy 
IV. Cheese
Choose the correct option.

The dough, which is used for making foods such as dosa and idli is also fermented by bacteria. ‘Toddy’, a traditional drink of some parts of southern India is made by fermenting sap from palms.  Cheese, is one of the oldest food items in which microbes were used. Different varieties of cheese are known by their characteristic texture, flavour and taste, the specificity coming from the microbes used.