Question

Which most likely was Persia’s most valuable asset?

Answer 1

Persia's most likely valuable asset was either its mines or the oil.<span />

Answer 2

In general, silk was most likely was Persia’s most valuable asset. It was silk and similar entities that were traded by Persians along the infamous Silk Road, which connected the far East with Europe. Persia was in an advantageous position right in the middle.