I believe the answer is d.
Industrialism had widened the technological gap between Africa and the West and industrialism led for a greater need for a secure and steady supply of raw materials, which Africa had in abundance, and for an increased desire for markets for the abundance of goods supplied.
True because you need to cite source of that fact
The measure of DBC is 78
Have a great day! :)
It can only identify if it's gold. By rubbing the tile on hold should leave a gold mark on tile