What is the best definition of a blitzkriege?

a) devastating airplane attack
b) rapid invasion by air and land
c) attack by multiple infantry troops
d) destruction of airplanes and tanks

I'm going to say B because blitzkrieg means flash war in German. Rapid, flash, kind of the same idea.

monopolies  came to the united states with the colonial administration. the large-scale public works needed to make the new world hospitable to old world immigrants required large companies to carry them out. these companies were granted exclusive contracts for these works by the colonial administrators. even after the american revolution, many of these colonial holdovers still functioned due to the contracts and land

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