Marco Polo's travels and book was important because:

The information in his book proved vital to European geographic understanding and inspired countless explorers — including Christopher Columbus, who, it is said, took a copy of Polo's book with him in 1492. "About fifty years after Polo's death, his work began to be utilized in the making of maps," said Abernethy.Aug

Reserved powers is your answer

Correct textbook answers would be 1,3, and 5