Final answer:
The assertion that energetic commerce and culture were two features of Athens' Golden Age is true, as Athens experienced substantial economic and cultural development during this period.
Step-by-step explanation:
The statement that two features of Athens' Golden Age were energetic commerce and culture is true. During this period, the invention of coinage in the sixth century BCE significantly boosted economic activity by providing a standard medium of exchange, thus facilitating trade. The Athenian agora became a bustling marketplace where merchants, farmers, and artisans could more effectively produce and sell goods for profit. This economic prosperity went hand in hand with a remarkable cultural efflorescence. The city saw unprecedented achievements in art, literature, and philosophy. Figures like Socrates, Pericles, Sophocles, and Euripides, among others, contributed to a vibrant cultural scene that laid the foundational works of Western civilization.