请选择ABCD8v2}2o+`.k;H3G*V:V*b/G-e5U(U;u8s8i;^;G If these trousers are too big, buy a smaller____.1D(a-O0b1Y0e'f8t6X
A. set1D(a-O0b1Y0e'f8t6X
B. one1D(a-O0b1Y0e'f8t6X
C. piece1D(a-O0b1Y0e'f8t6X
D. pair1D(a-O0b1Y0e'f8t6X