WILL GIVE BR4INLIEST The picture below shows a protist undergoing cell division.
As the parent cell divides, it will —
A. pass on genetic information to its offspring through heredity.
B. teach its offspring to look and act like it.
C. form offspring that learn to look like the parent through factors in the environment.
D. hold onto some genetic material so that its offspring only get some of its traits.

Astudy by solloch and et. al., in 2017, gives the map above which shows the frequency of alleles with a ccr5-delta32 mutations over 87 different countries. this mutation deletes the presence of a co-receptor (ccr5) on the outside of human t-cells (lymphocytes). some viruses, such as the one responsible for the black death and human immunodeficiency virus (hiv), require this receptor for attachment to host cells during the infection process. the black death was an epidemic that passed over northern europe during the 14th century killing nearly 60% of europeans. according to this information, which explanation best explains why northern europeans show a greater immunity for hiv than some other parts of the world?