The rapid growing population is one of the major problems ________ the world．We must keep the number of people ________ growing so fast in order to let our sons and grandsons live a better life．

A.faced; from

B.facing;/

C.facing; from

D.faced;/

答案及解析： C

解析：

此处face指“要求某人/某事物的注意，面临”；

keep…from doing阻止，使免于。