阅读下面短文，从短文后所给的A、B、C、D 四个选项中，选出能填入相应空白处 的最佳选项。Eimei,a giant panda that has lived in Japan for 28 years,and his twin daughters arrived in Chengdu from Japan on Feb.22,2023.
Speaking of Giant panda,people may think it is still a kind of 1 animals. But the good news is,populations are on the rise due to lots of efforts by Chinese conservation programs using new 2 technology.By actively guiding adult pandas to mate(交配),more and more panda babies are being 3 .
But today,there is an even bigger challenge.Baby pandas from these breeding programs are being reintroduced to the 4 ,their native home.The first thing they have to learn is how to climb trees.Because in the forest,they may face 5 ,such as other bears.The ability of young pandas to survive in the wild is mainly 6 by their mothers.The most important thing he has learned is great 7 ,a natural instinct(天性)he gets from his wild panda mother.
In 2018,in the Daxiangling Nature Reserve,the Panda Returning Home Project Pilot Site was launched,which means giant panda reintroduction went a step 8 .This is a long yet hard journey,but no matter how 9 the path to the future is,and how many challenges we will 10 ,we will be with you and accompany you home.
