Which of the Following Would Occur After the Production of a Functional

Which of the following would occur after the production of a functional μ chain as a pre-B-cell receptor?

A) RAG proteins are degraded.
B) The chromatin structure of the heavy-chain locus is reorganized to prevent gene rearrangement.
C) Transcription of the RAG1 and RAG2 genes ceases.
D) There is allelic exclusion of a second μ chain.
E) All of the above would occur.