阅读下面短文，掌握其大意，然后从各题所给的四个选项（A B C D）中，选出最佳选项。
Bringing a giraffe into the world is a tall order．A baby giraffe falls 10 feet from its mother’s womb （子宫） and usually lands on its 1 ．Within seconds it rolls over and tucks（缩拢） its legs under its body．Gary Richmond describes how a newborn giraffe learns it first 2 in his book, A View from the Zoo．
The mother giraffe 3 ．Then she 4 ．She waits for about a minute, and then she does the most 5 ．She swings her long leg outward and kicks her baby． thing herself directly over her calf her head long enough to take a quick look
If the baby giraffe doesn’t 6 ．The 7 to rise is very important．As the baby calf grows 8 （激励） its efforts．Finally, the calf stands for the first time on its 9 ． legs , the mother kicks it again to stimulate , the violent process is repeated over and over again
