What was the name of Mansa Masa's great city? А
Kano
B
Gao
Taghaza
BR
(D
Timbuktu

a factory opens that mass-produces light bulbs.

explanation:

not sure if that's an answer to your questions but this is an example! : )

answer; sutherland-differential association;

answer; not notated (at least, not in the traditional sense) and includes many improvised sections and solos;