Which of the following statements are correct ?.

a)Microorganisms comprise diverse organisms like bacteria, fungi, protozoa, and microscopic plants and animal viruses. 

b) Microbes like bacteria, viruses and many fungi can be grown on nutritive media to form colonies.

c) In our stomach, the LAB plays a very beneficial role in checking disease-causing microbes.

d) ‘Toddy’, a traditional drink from some parts of southern India, is made by fermenting sap of palm tree.