答案B
分析:句意是“他们能照顾自己”,主语动作的对象是主语自己,所以选B项themselves.(延伸)本题中的反身代词是作动词短语take care of的宾语,而of是介词,所以反身代词也可以作介词的宾语.He bought himself a Walkman.=Hebought a Walkman for himself.Edison built himself a chemical lab.=Edison built a chemical lab for hiMself.He was pleased with himself.