问题
A number of people_____ready to work in poorareas in the western part of China —-Yes,the number______getting________.
A:is,is,more and more
B:are,is,larger and larger
C:is,are, larger and larger
D:are,is,more and more;
B:are,is,larger and larger
C:is,are, larger and larger
D:are,is,more and more;
正确答案是：
