In the 1400s, European explorers benefited from

A.

the availability of GPS.

B.

the development of time zones.

C.

the use of steam ships.

D.

improvements in map-making skills.

Verified Answer :

They benefited from improvements in map-making skills. We know they didn't have GPS. We know time zones has nothing to with it. Have you ever heard of Columbus coming on a steam ship? So D.

DThe improvements in map-making skills. It cant be A cause gps' didnt exist in the 1400s, and steam ships and the time zones werent created until later on in like the 1700s and foward when America was found