The Supreme Court case United States v. Nixon led to Select one:
*it's either b or d, but i'm not sure.*
a. gaining executive privilege
b. limits to executive privilege
c. Nixon keeping the tapes private
d. Nixon losing his re-election

The constant presence of diseases or infectious agents within a given geographic area or population group. it may also refer to the usual prevalence of a given disease with such area or group. it includes holoendemic and hyperendemic diseases. a holoendemic disease is one for which a high prevalent level of infection begins early in life and affects most of the child population, leading to a state of equilibrium such that the adult population shows evidence of the disease much less commonly than do children (malaria in many communities is a holoendemic disease). a hyperendemic disease is one that is constantly present at a high incidence and/or prevalence rate and affects all groups equally. so probably family history.

B. hunting and gathering

No, the alien theory is not a scientific claim. it is based on one's beliefs.