Answer:
Poverty
Step-by-step explanation:
Immigration is affected by push and pull factors. A push factor refers to a reason why someone might want to leave his or her place of residence. A pull factor is a reason why someone might be attracted to reside in a particular place. In this case, the first three options are pull factors, while the last one is a push factor. If a person lives in poverty in a particular place, this might lead him or her to try his luck somewhere else.