Qué entiende por país receptor y por país emisor​

First, the term 'sending state' or 'sending country' implies that these countries or states actively send or export their emigrants, which is often not the case. ... It refers to expatriate populations as both diasporas and emigrants

Receiving country means a foreign country to which a hazardous waste is sent for the purpose of treatment, storage or disposal, except short-term storage incidental to transportation.

Explanation:

the allies overtook outlying islands to make access to japan easier.

answer; (d) anthropology;