请选择CBA1k)k'@,m How many books do you have?9F2n2G)i9B7~2Z-I6G0v-O-B
A. Three9F2n2G)i9B7~2Z-I6G0v-O-B
B. I have three book9F2n2G)i9B7~2Z-I6G0v-O-B
C. Three book9F2n2G)i9B7~2Z-I6G0v-O-B