请选择CBA-t-h*X;@)q8X5l-? There are thirty pupils in our class. _____ of them are young pioneers(e1}/{5D3[.P:_,D,z;N(Z
A. Any(e1}/{5D3[.P:_,D,z;N(Z
B. Either(e1}/{5D3[.P:_,D,z;N(Z
C. All(e1}/{5D3[.P:_,D,z;N(Z