In What Way Does the κ Light Chain Differ from the λ

In what way does the κ light chain differ from the λ light chain?

A) κ performs a different function from λ when bound to the immunoglobulin heavy chain.
B) κ,but not λ,is encoded on the same chromosome as the heavy-chain locus.
C) κ contains a VJ region,whereas λ contains a VDJ region.
D) The κ locus encodes a single C segment,whereas the λ locus has more than one.
E) κ contains a transmembrane domain but lambda does not.