Which Statement Does NOT Apply to the Construction or Use

Which statement does NOT apply to the construction or use of a DNA library?

A) Determining the location of a particular DNA sequence in a DNA library requires a suitable hybridization probe.
B) Genomic libraries are better for expressing gene products than cDNA libraries.
C) Many segments of DNA from a cellular genome are cloned.
D) Specialized DNA libraries can be made by cloning DNA copies of mRNAs.
E) The DNA copies of mRNA found in a cDNA library are made by reverse transcriptase.