Read the following statements and choose suitable option. 

a) There is no place for lichens and some acellular organisms in five kingdom system.

b) Common cold or flu is caused by viruses. 

c) Viruses are placed in kingdom fungi.

d) Viruses are obligate parasites.

e) Ivanowsky recognised microbes as causal organism of mosaic disease of tobacco.

f) A virus is nucleoprotein where protein is infectious.

• A

  a, b, c, d, e, f are correct

• B

  a, b, c, d, e, f are incorrect

• C

  c, f are correct

• D

  a, b, d, e are correct