Final answer:
A push factor for migration is the destruction from an earthquake, as push factors are conditions that force people to move away from their homes, often towards urban areas or different countries.
Step-by-step explanation:
The option that represents a push factor for migration is C) destruction from an earthquake. Push factors are conditions that drive or force people to leave their current location and migrate to another place. These factors can include a range of negative circumstances such as political unrest, poverty, war, land shortages, famine, natural disasters, high crime rates, lack of resources, or discrimination. These factors often contribute to a rural-to-urban shift or migration from one country to another. In contrast, the search for a better job, desire to live near family members, and admission to a university are typically considered 'pull' factors because they draw people towards a new location due to the presence of positive conditions or opportunities there.