Select the Word or Phrase That Best Matches the Definition

Select the word or phrase that best matches the definition or example.
-Two major Persian invasions of Greece,in 490 B.C.E.and 480 B.C.E. ,in which the Persians were defeated on both land and sea.

A) Persian Empire
B) Athenian democracy
C) Greco-Persian Wars
D) Alexander the Great
E) Hellenistic era
F) Augustus
G) Pax Romana
H) Qin Shihuangdi
I) Han dynasty
J) Trung Trac
K) Kushan Empire
L) Mauryan Empire
M) Ashoka