I believe the only correct answers are A. Spanning through Asia and Europe, and D. Kiev is where the revolution is taking place that has Ukrainians worried that Russia will attack.
The correct answer is answer C ("In the 1980s").
Computers started reaching homes and businesses on a bigger scale during the eighties. The difference was made when IBM brought to the market the revolutionary concept of a Personal Computer (PC), which for the first time allowed a single user to operate a computer. Before then, the user would give commands to a mainframe computer and a whole team would have process the request and operate the machine in order to bring results.
Hope this helps!
B is the answer to the question
Their knowledge allowed them to take control of the production process and the training of apprentices.
I think the answer is 100
