Which of the following was exchanged in the columbian exchange?
a.
people
c.
technology
b.
language
d.
all of the above

The correct answer is: all of the above.

The Columbian exchange was the exchange between the New World and the Old World after their first contact, and it involved all of the above (and some more, such as diseases).

The  pan-african movement  was an "emotional, cultural, psychological and ideological  movement  that began among the  african  dispora in the western hemisphere, for a closer  purpose, so that  african  people could feel secure, attain political, economic as well as psychological power visa vis other races or world regions" .