After 700 BCE, a sense of equality developed in Greece among foot soldiers.
Answer: Option D
Explanation:
The foot soldiers serving in the ancient Greek armies belonged to different communities. These soldiers were collectively called 'phalanx'.
The sense of cooperation that developed amongst these soldiers after collectively fighting wars for the throne also ultimately resulted in developing a sense of equality among the soldiers.
Though these soldiers belonged to different communities that had different positions in society, the discrimination and between them eventually nullified.