Toddy is
$I.$ $A$ traditional drink of Southern India
$II.$ Made by fermentation of sap from palm trees
Which of the statements given above about toddy is/are correct?

Which role is played by Lactobacillus in our stomach?

$A$: Curd is more nutritious than milk.
$R$: $LAB$ present in curd checks the growth of disease-causing microbes.

Which of the following are fermented food products derived from soybean?

Which of the following converts milk into curd and increases the amount of vitamin $B_{12}$?

Study the following flow chart that shows curd formation from milk and select the correct option for $A$ and $B$.
Milk is incubated with curd
$\downarrow$
$LAB$ shows growth in milk
$\downarrow$
Production of .....$A$.....
$\downarrow$
Coagulation and digestion of milk protein
$\downarrow$
Improved nutritional quality by increased ....$B$....