Answer:
male citizens - the most important group of the society, attended the assembly, could vote
women - had no rights, couldn’t own property, couldn’t take part in the government
slaves - the lowest class of people in Athens, had no rights, did manual labor
metics - free people, but not citizens, born outside of Athens
Explanation:
Although Athens is regarded as the first democracy in the world as we can see it didn't apply to everyone. Only Athenians who were born in that city-state over the age of 18 had political rights and could participate in the decision making process. Women as we can see couldn't vote. It also applies to foreigners (metics) and slaves. Still, position of slaves in Athens was much better than position of slaves in Sparta for example.