Between 27 B.C.E. and 180 C.E., trade and commerce expanded significantly in the Mediterranean due to which of the following?

While the introduction of money certainly improved trade efficiency by providing a standardized medium of exchange, it was not the primary factor in the significant expansion of trade during this period. The existing trade networks were already in place, and the introduction of coinage alone would not have ensured the safety and stability necessary for widespread commerce.

The printing press was not invented until the 15th century, well after the period in question. Therefore, it could not have contributed to the expansion of trade and commerce between 27 B.C.E. and 180 C.E. This choice is historically inaccurate and irrelevant to the developments of that era.

While agriculture was indeed important, the availability of farmland alone does not account for the significant expansion of trade. The focus on agricultural production does not encompass the broader dynamics of trade and commerce that were largely influenced by the stability and infrastructure provided by Roman peace.