Which was first photosynthetic organism

Which of the following are first photosynthetic organisms

$ The first photosynthetic organisms which show oxygenic photosynthesis were cyanobacteria. ! Photosynthesis by Eubacteria is Anoxygenic.

A: The first photosynthetic organisms which show oxygenic photosynthesis were cyanobacteria. R: Photosynthesis by Eubacteria is Anoxygenic.

Which of the followingis first oxygenic photosynthetic organism?

Which of the followingis first oxygenic photosynthetic organism?

The first oxygenic photosynthetic organisms were….............

Which is correct for photosynthetic organs

Which is correct for photosynthetic organs

Which is correct for photosynthetic organs