30 POINTS!! Please help asap!
Will also mark brainliest

What made land routes to Asia dangerous to travel in 1492?
O the spread of disease
O bands of thieves
O poorly established routes
O hostile Ottoman warriors

The rise of advertising in the 1920s. i am good with seeing how advertisements shape the roaring twenties and how it developed a new way of life through modern days. but i am not sure what the details of advertising in the 1920s were. if possible can you send me links (preferrably credential links) to sources that maybe show like the first company to start advertising through the radio, how advertising benefits (statistics graphs), etc.

Wire campaign finance laws administered by the fec not well enforced? a campaign finance rules are difficult to enforce b the fec has been plagued by corruption? c the fec does not have enough staff or funding d the fec was only created by the america vote act of 2002

The roosevelt corollary specifically states that the united states would play what role in latin america? a. mediator c. police power b. watchdog d. buffer state