Which of the Following Is True of the Sequences Found

Multiple Choice

Which of the following is true of the sequences found in DNA libraries from human tissues?

A) Those in a muscle cDNA library should all be present in a brain genomic library.
B) Those in a brain cDNA library should not be found within a muscle genomic library.
C) Those in a brain cDNA library should all be present a muscle cDNA library.
D) Those in a muscle genomic library should not be found within a brain genomic library.
E) Those in a muscle cDNA library should all be present in a brain cDNA library.