b. False
The answer is true.
In 477 BC, the Delian League was founded by around 150 – 330 numbers of Greek City-States. The league is under the leadership of the Athens. Its main purpose is to continue fighting the Persian Empire. Shortly after, the Athens began to use the League’s navy for its own purposes.
b. 31622
c. 31622, 76000
d. 31628