Select the three regions explored by columbus.
a. philippine islands
b. coast of north america
c. caribbean islands
d. coast of greenland
e. coast of central america
f. coast of south america

i think it is Caribbean islands, coast of north america, and coast of central america

The factors that laid grown to the prosperity of British Mainland were their advance knowledge in navy and having their own merchant fleet. The time they entered the commercial economy and used both capital and product in trade. The accumulated tariffs and taxes.