Select the correct statement out of (a-d)
(a) single celled spirulina can produce large quantities of food rich in protein, minerals and vitamins.
(b) Body weight -wise the microorganism methylophilus methylotrophus produces several times more protein that a cow per day.
(c) Button mushroom is a rich source of vitamins.
(d) A rice 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