I believe the answer is C.
Hope This Helps! Have A Nice Weekend!!
I think it was stalin not sure tho
Answer:
The growth of inter-regional trade in luxury goods (silk and cotton textiles, porcelain, spices, precious metals and gems, slaves, exotic animals) was encouraged by significant innovations in previously existing transportation and commercial technologies--including caravanserai, compass use, the astrolabe, larger ship designs in sea travel--and new forms of credit and the development of money economies (Bills of exchange, Credit, Checks, Banking Houses, Use of Paper Money).
I'm pretty sure it's the national road
To have laws and enfocement to enforce those laws and keep peace among citizens
