Birth control, IUD, condoms
B. Building blocks
This is most likely to be the answer
Red blood cells, White blood cells. And eukaryotes.
The answer to this question is that this are all common by
being x linked. X linked inheritance means that a disorder is manifested /
located in the x chromosomes. The following are the known X linked disorders
such as color blindness, hemophilia, duchenne muscular dystrophy, menkes
disease, and others.