In my opinion, I don’t think it was a threat
The Ottoman empire had taxes and restriction on trade in its own territory that influenced and encouraged Europeans to seek new trade routes to other countries like India and China or any other countries in East Asia that is how the ottoman empire influenced the Europeans to explore during those centuries.
The answer will be D, The French traded with Native Americans and the spanish tried to convert Native Americans to Christianity
The Greeks introduced a system of political reforms that they called demokratia, or “rule by the people.” ... Although this Athenian democracy would survive for only two centuries, Cleisthenes' invention was one of ancient Greece's most enduring contributions to the modern world.