Why was it unprofitable for europeans to establish large colonies in africa during the 1400's and 1500's: a) travel to and from africa was to expensive b) africa labors demanded too much pay c) african peoples put up too much resistance d)africa did not contain enough resources.

i would say your answer would be the second option.

hope this !

zheng he was a chinese explorer who lead seven great voyages on behalf of the chinese emperor. his seven total voyages were diplomatic, military, and trading ventures, and lasted from 1405 – 1433. however, most historians agree their main purpose was to promote the glory of ming dynasty china.

explanation: