Respuesta :
The correct sentence that combines these two sentences with an appositive phrase is the last one: By the 1500s, galleons, huge sailing ships, were taking cargo across oceans all over the world.
Answer:
By the 1500s, galleons, huge sailing ships, were taking cargo across oceans all over the world.
Explanation:
Huge sailing ships is an appositive phrase that renames and explains galleons. It is nonessential, so it is enclosed by commas.