Read the excerpt from The Travels of Marco Polo and study the map. When the traveler leaves Kuh-banan he goes for fully eight days through a desert. . . . After these eight days he reaches a province called Tun and Kain, where there are cities and towns in plenty. It is situated on the northern borders of Persia. There is an immense plain here, in which stands the Solitary Tree, which the Christians call the Dry Tree. Map of a section of Persia showing a body of water called Kais in the bottom left corner next to the cities Shiraz and Hormuz, then ranges of mountains in the middle of the map with other cities labeled. In the uppercase right is a tree symbol, labeled the Dry Tree. Based on the excerpt and the map, what makes the journey to Kain difficult? the Kais Sea travel through Shiraz mountains and dry conditions the Dry Tree plains