Why did king ferdinand and queen isabella need money from trade with asia?

a. they had to pay for a recently fought war.
b. they needed to pay for previous expeditions.
c. they were planning on moving to another country.
d. they did not earn much money as king and queen.

answer; i believe that the correct answer is (decreased)

productive most commonly means: achieving or producing a significant amount or result.

explanation:

productive can also mean:

these depend on how the word productive is used. most likely productive will mean   achieving or producing a significant amount or result.

it all depends on how long the hours are. i think they wouldn't approve of it. in my opinion.

answer; does not include a reference to the audience;