How Is CGH Used in Studying or Treating Cancer

How is CGH used in studying or treating cancer?

A) Transcription factors that acts as tumour-suppressors can be identified by CGH.
B) Transcription factors that are more abundant in tumours can be identified by CGH.
C) Transcripts that are more abundant in tumours can be identified by CGH.
D) Trisomy 21 can be identified using CGH.
E) Deletions containing tumour-suppressor genes are often found in tumours and can be detected by CGH.