A) The urbanization of the United Stats quickened due to technology improvements.
-This whole paragraph is on the subject of how technology quickly urbanized the United States. All of the other answers are factors that caused this to happen.
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Research can be used to prove something true is tell factual info about something! Research is conducted in a wide variety of topics from illnesses to animals etc.
C. bicycling to build leg strength. It is the most general activity among the
four choices. Although it says to build
leg strength it is not so specific for what activity it will be used for. The other choices were more specific in their
goals.
Esperanza promised abuelita that she would write her letters.
