What is the primary difference between genomic and cDNA libraries?

Genomic libraries are used to study gene expression, while cDNA libraries are used to study gene function.

Genomic libraries contain DNA fragments from the entire genome, while cDNA libraries contain DNA copies of mRNA.

Genomic libraries contain only coding sequences, while cDNA libraries contain non-coding sequences.

Genomic libraries are created using reverse transcription, while cDNA libraries are created using restriction enzymes.