♥which factors kept invaders out of arabia? a. hot temperatures and deserts b. cold temperatures and mountains c. lack of water and cold temperatures d. lack of water and mountains

I believe the answer is: A. hot temperatures and deserts

Hot temperature and desert means that the invaders need to make a huge sacrifice in terms of food and water supply. if they want to invade this territory. Not only, after considering the deserted land, potential invaders most likely think that the land would not be able to be used to grow crops. This is why many of them think that invading Arabia was not worth the trouble.

it teaches readers about an interesting chinese custom and causes them to determine that the minister is trying to be polite

answer; ok in rural area most people depend on private transportation(cars),pick up truck,donkey and buggy: ),and urban people can walk or ride public transportation,bus,train cab,uber.