The correct answer is B) it was a mixture of Greek and other cultures.
The term Hellenistic culture has been defined as "Greek-like" culture because it was a mixture of Greek and other cultures.
The Hellenistic period was the time when Greek Culture was spread from the region of the Eastern Mediterranean to Asia, mostly by the many conquests of Alexander the Great. The culture, traditions, and customs of Greece were passed to other nations that came into contact with Alexander the Great troops. So yes, the term Hellenistic culture has been defined as "Greek-like" culture because it was a mixture of Greek and other cultures.