Why have historians only recently solved some of the secrets of early african civilizations?
select the best answer from the choices provided.
a.
some societies did not leave written records.
b.
many historians had been biased against african civilizations.
c.
some writing systems were figured out only in the last 150 years.
d.
all answers are correct.

answer; i believe that the correct answer is (tobacco);

most are appointed by the president and confirmed by a vote in the senate. however, appeals court judges appoint federal bankruptcy judges, and district judges appoint federal magistrate judges. the qualifications for these positions vary depending on the preferences of the person reviewing nominees.

hope this , give me brainliest answer = )

it is a : ) always outside of government control