Read the given statements regarding Cyanobacteria and identify the correct one. 

I. The Cyanobacteria are unicellular, colonial or filamentous, and are commonly found in most harsh habitats.

II. The colonies of Cyanobacteia often form blooms in polluted water bodies

• A

  Only I 

• B

  Only II 

• C

  I and II 

• D

  Neither I nor II