by 1500, renaissance ideas were mainly being spread across europe through speeches. books. recordings…

Brief Explanations:

The invention of the printing - press around 1440 made the mass - production of books possible. By 1500, books were the main medium for spreading Renaissance ideas across Europe as they could reach a wide audience. Speech had a more limited reach, recordings did not exist in the 1500s, and politicians were not the main vehicles for spreading Renaissance ideas.

Answer:

books.