15 POINTS! PLS EXPLAIN! Jose had a 200 mL cup of hot chocolate that was 95* Celsius which was too hot to drink. His mother suggested he add more cold milk to cool it off, so he added 50 mL of milk which was 5* Celsius. What was the approximate temperature of Jose's hot chocolate? A. 75* celsius

B. 95* celsuis

C. 25* celsuis

D. 5* celsuis

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?