Historians label an event as a turning point when it a. affects more than on region of the world b. marks a major social, economic, or political shift c. cannot be categorize into existing historical themes d. occurs multiple times during different historical periods.

The answer is Marks a major social, economic, or poitical shift.

A is wrong.

rome's central location made it a center for trade through out the mediterain.

rome's lack of natural resouces encourgaged expansion and rome's geography priotected the city from invasion.

: claim: the renaissance was a turning point in european history because it affected all levels of society, from government to the church and to the lives of ordinary people. supporting point: the printing press to spread new ideas.supporting point: writers such as erasmus tried to blend humanist ideas with religious beliefs.conclusion: society at all levels was transformed.