I’m going to say A ...controlling inflation. Could be wrong but worth a try
Greek scientists – mostly mathematicians, philosofers, biologist, physicists –changed the way people viewed and understood the natural world around them starting from the simple observation and measurement of the objetcts around them. After that, their observations arrived to experimentation and analysis.
The Russia economical advances made great industrial experience in the two decades during 1914, but it was still under-developed and ill-equipped to supply a war.
Hope this helps you alot/
What u need to put the answers