Which are actual evidence supporting the endosymbiotic theory for the
origin of eukaryotes? *

Answer and Explanation:

The Endosymbiotic Theory states that mitochondria and chloroplasts were, at some point, individual free-living cells. Throughout time, they were either consumed or parasites that ended up inside a host cell. Then, this became a  beneficial - symbiotic - relationship, hence the name "endosymbiotic" theory.

There are pieces of evidence that support this theory, for example:

Eukaryotic organelles are far more similar to prokaryotes more than previously thought. For instance, plant plastid organelles divide in an extremely similar way in comparison to free-living bacteria.The genes that are present in organelles (eukaryotes) are also extremely similar to the genes of prokaryotes.Eukaryotic cells NEED its organelles because some of them contain their 'own' DNA. Therefore, a eukaryotic cell does not contain its own genetic information. This indicates that organelles were once free-living cells before 'living' inside the eukaryotic cell.

According to edgenuity, the answer is c.