Indicate Whether Each of the Following Descriptions Better Applies to CDNA

Short Answer

Indicate whether each of the following descriptions better applies to cDNA libraries (C) or genomic DNA libraries (G). Your answer would be a five-letter string composed of letters C and G only, e.g. CGCGC.
( ) Their production requires use of reverse transcriptase.
( ) They are enriched in protein-coding genes.
( ) Different sequences are represented in them based on their transcription level.
( ) They contain intronic sequences.
( ) They are cell-type specific.