Which component of milk is partially digested by $LAB$ bacteria?

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?

Conversion of milk to curd improves its nutritional value by increasing the amount of

Which vitamin content is increased by Lactobacillus bacteria in milk?

Which bacteria are responsible for the conversion of milk into curd?

Streptococcus thermophilus and Lactobacillus bulgaricus are being used for the production of