Consider the following four statement (1-4) and select the option which includes all the correct ones only
(1) Single cell Spirulina can produce large quantities of food rich in protein, minerals, vitamins etc
(2) Body weight-wise the microorganism Methylophilus methylotrophus may be able to produce several times more proteins then the cows pe day
(3) Common button mushrooms are a very rich source of vitamin C
(4) A rich variety has been developed which is very rich in calcium

Options

A. c and d
B. a, c and d
C. b,c and d
D. a and b

Answer

D