Where does the human rights issue first occur in enders game?

Explanation

The issue of the human rights (genocide) appears when the guy named ender fights what he thinks is he last test for command school but instead its the last battle of the Third Invasion against the humans and b u g g e r s. The humans are the defenders they are defending their home Earth and the attackers are the b u g g e r s.

the correct answers are:

c. “never in the history of his people had a man married a woman who spoke a different tongue.”

d. “‘it has never been heard,’ was the verdict of an old man speaking a few weeks later.”

e. “this man had come with others to commiserate with okeke.”