Which of the statements given below are INCORRECT?

i. Methanogens are eubacteria which produce methane in marshy areas.

ii. Nostoc is a filamentous blue green algae which fixes atmospheric N₂. 

iii. Chemosynthetic autotrophic bacteria synthesize cellulose from glucose. 

iv. Mycoplasma lack cell wall and can survive without oxygen

• A

  ii, iv 

• B

  i, ii, iii 

• C

  ii, iii, iv 

• D

  i, iii