Answer :
Final answer:
Marco Polo was most impressed by the variety of animals on the island of Zanzibar.
Explanation:
The variety of animals impressed Marco Polo most about the island of Zanzibar. During his travels, he encountered unique and exotic wildlife on the island, which left a lasting impression on him.
Learn more about Marco Polo's impression of Zanzibar here:
https://brainly.com/question/14927385