The correct answer to this open question is the following.
A concern of the Queen Isabella of Spain about the voyage of Columbus was that she felt that Columbus was not going to be able to get to Asia through his chosen route.
Explorer Christopher Columbus received the patronage of the Kings of Spain, Ferdinand of Aragon and Isabella the Castille. They trusted Columbus to find a new route to the Indies. However, Columbus ended up getting in the Americas. Columbus officially discovered the Americas on October 12, 1492.