I would say these would be transform boundaries where the tectonic energy appears to be transformed from one plate to another such as off the coast of Guatemala so it is not a simple process of subduction,.
Afghan refugees living in Iran to escape terrorism - Push factor
Bangladeshi migration to India due to flood - Push factor
Admission to university in England - Pull factor
Migration to Canada for a better lifestyle - Pull factor
Migration to America to escape religious persecution - Push factor
Entrepreneur moving to Singapore for a better business opportunity - pull factor
Devils tower this was the first national monument in wyoming.
D. Cambodia (mostly), Thailand, Vietnam