I believe that they built the weapons needed for the war. When the men were gone to war the women needed jobs and money so they started to build.
Greek influence. Roman literature owes a debt to the Greeks, more specifically Athens. This indebtedness to Greece was even recognized by the writers themselves. Horace, one of the poets of the Golden Age of Roman literature wrote that Greece introduced the arts "into a backward Latium."
Between the 9th century BCE and the 6th century BCE, the ancient Greek temples developed from the small mud brick structures into double-porched monumental "peripteral" buildings with colonnade on all sides, often reaching more than 20 metres in height (not including the roof).
Roman genius was engineering. they was Master Builders
I think the answer is (C) They were all powerful leaders of the Persian Empire