Because a Particular Antigen Is Far on the Bacteria from Another

Multiple Choice

Because a particular antigen is far on the bacteria from another antigen, antibodies binding to these antigens

A) would activate complement only if antibodies bound to them underwent a comformational shift
B) would activate complement only if antibodies bound to them were close enough for the Fc regions of the bound antibodies to bind different globular heads of the C1q molecule
C) would activate complement only if antibodies bound to them underwent a comformational shift and would activate complement only if antibodies bound to them were close enough for the Fc regions of the bound antibodies to bind different globular heads of the C1q molecule
D) none of the above