Bacterial and Yeast Artificial Chromosomes Are Useful Tools in Molecular

Bacterial and yeast artificial chromosomes are useful tools in molecular biology because

A) they can be used to directly infect human cells and thus treat genetic diseases.
B) they are easy to genetically modify and insert into many different organisms.
C) they can replace the natural chromosomes found in bacteria and yeast.
D) they can carry large DNA fragments (>30,000 bp) such as large eukaryotic genes.
E) they are easy to genetically modify and insert into many different organisms,including the direct infection of human cells for the treatment of genetic diseases.