What type of issue does the effects manufacturer need to overcome in order to be able to mass produce this
echo device?
Amanufacturer of echo effects for music recording
studios has built a prototype of an echo device that
sounds exactly like a beloved echo machine from the
1970s. Even though its computer chips are cheap, they
are hard to find because the compounds originally used
to make the chips are no longer being manufactured.
A. availability
B. cost effectiveness
C. safety
D. time effectiveness