A style of painting using sharp contrasts of light and dark is the answer! so b is the right answer
It has made people lazier but also helped because all the information that they could possibly need is at their fingertips.
Nazi germany was the first country to use rocket propuslion in wwii. they invented the v-2 rocket, the first ballistic missile. it was first used in attacks on cities in france and large allied targets in the war. in 1942, the missile entered mass production and was very daedly at some attacks like Antwerp, London and Norwich.
I believe the answer is,
The life expectancy of the average worker.
Let me know if this helped! :)
