When did early land plants become extinct?

The chloroplasts of land plants are thought to have been derived according to which evolutionary sequence?

• A)cyanobacteria → green algae → land plants B)cyanobacteria → red algae → green algae → land plants C) cyanobacteria → green algae → fungi → land plants D)red algae → brown algae → green algae → land plants E) red algae → cyanobacteria → land plants

• Answer:

  I think the answer is A: A)cyanobacteria → green algae → land plants You really should look this up in your book, it shouldn't be hard to find.