Trade spread the italian renaissance across europe by merchants become patrons. monarchs become artists. merchants become politicians. artists become patrons

The answer is helping merchants become patrons.
Patrons refers to The person or institution that give financial support to a certain cause or artist.
Because of patrons, the artists in the renaissance period could solely focus themselves on creating their artwork without having to worry about meeting ends meet, and accelerate the spread of the renaissance culture.

Ais 190 b is 200c it can't be more then 100%