The end of WWII introduced the baby boomer generation. This happened all over the world, but mainly in the West. The elevated birthrate in the US added about 50 million babies by the end of the 1950s. Hope this was it.
As it relates to the Fourth Amendment, the legal term that means that there is good reason to believe that a location contains evidence and that a search warrant should be issued is known as probable cause. The correct answer is B.