Select the correct combination of the statements (i-iv) regarding the characteristics of certain organisms.
(i) Methanogens are archaebacteria which produce methane in marshy areas
(ii) Nostoc is a filamentous blue-green alga which fixes atmospheric nitrogen
(iii) Chemosnthetic autotrophic bacteria synthesise cellulose from glucose
(iv) Mycoplasma lack a cell wall and can survive without oxygen
The correct statements are

Options

A. `(b),(c ),(d)`
B. `(a),(b),(d )`
C. `(b),(c )`
D. `(a),(b),(c)`

Answer

B