Which of the following is not a push factor that would cause a person to consider migrating to a new country? a. volcanoes and earthquakes b. a vineyard or crop blight c. excessive rent payments d. they are all push factors

All three are push factors, because they all cause the population to be in risk to lose their properties or lives. When the human being experiences that the external situation put them in situation of not being able to handle the conditions to have a comfortable life for them and their families they will be tempted to migrate in search of better conditions.