Which of the following situations is the best example of voluntary migration?

no sé si entiendes español pero te daría la respuesta si lo supiera, pero lo siento mucho

all fossil fuels are nonrenewable, so think coal, gasoline, things that we will eventually run out of. all fossil fuels are nonrenewable resources, but not all nonrenewable recourses are fossil fuels. these resources are not being renewed as fast as we are using them. i hope this considering there weren't any answer choices.