How did Marco Polo encourage European exploration?

He wrote a book of his travels. it encouraged European exploration because he also wrote about in Asia and the gold, riches, and rare spices he found.  

john maynard keynes developed new economic theories in response to the : b) great depression of the 1930s. his theories are so important that they are known as "keynesianism". in his works he supports the idea of a government with deeper involvement and intervention to end the great depression.

the correct answer is ligma : ) jk but i think its c