Photosynthetic Euglenids Are Likely to Have Evolved from an Ancestral

Multiple Choice

Photosynthetic euglenids are likely to have evolved from an ancestral eukaryote that engulfed a green algal cell.Which statement concerning this engulfment is false?

A) Euglenids have the same photosynthetic pigments as a green alga.
B) Euglenids were prokaryotes until acquisition of the green alga.
C) The chloroplast of the euglenid has multiple surrounding membranes.
D) This engulfment represents secondary endosymbiosis.
E) Euglenids have a flexible cell membrane.