I think that it is B wave patterns good luck!!!!
Answer:
mortality rate, measure of human infant deaths in a group younger than one year of age. It is an important indicator of the overall physical health of a community. ... High infant mortality rates are generally indicative of unmet human health needs in sanitation, medical care, nutrition, and education.
B is the best choice i hope i helped u
Mudflow, slump, weathering, deposition