The answer is A. As those are the two diplomats who signed it. Molotov is the Soviet, and Ribbentrop the German.
Answer: Simple. They did not have production lines before Ford.
Explanation:
On December 1, 1913, Henry Ford installs the first moving assembly line for the mass production of an entire automobile. His innovation reduced the time it took to build a car from more than 12 hours to two hours and 30 minutes. The most significant piece of Ford's efficiency crusade was the assembly line.
The fundamental modernization of ribbed groin vaults in Gothic cathedrals was to accommodate stained glass window. The ribbed groin vault is the connection of two or three barrel vaults yields a rib vault or ribbed vault when they are bordered with an armature of piped masonry often engraved in decorative patterns and associate groin vault is an older custom of vault structure.