How could Europe have changed so much between the Middle Ages and the Renaissance?

The Renaissance – that cultural, political, scientific and intellectual explosion in Europe between the 14th and 17th centuries – represents perhaps the most profoundly important period in human development since the fall of Ancient Rome. ... Italy in the 14th century was fertile ground for a cultural revolution.

I'm sorry if this does not answer your question but it's the best I got.

might be agreeing to participate ethically with other european nations in the slave trade

or notifying other european nations when taking possession   of african territories

b. after i get up in the morning,

explanation:

after is a subordinating conjunction that introduces a time clause. time clauses are dependent clauses used to indicate when something happened.

the clause "after i get up in the morning" tells when the action in the main clause (drinking a cup of coffee) happens:

"after i get up in the morning, i drink a cup of coffee." it is the most logical choice of all.