One of the most important motives were to expand their power and gain adherents to Christianity. The economic exchange and the search for gold and silver were some of the main reasons.
these explorations brought as a consequence, the creation of new routes, the resurgence of the urban life and of the commerce with the appearance of the Banks.
I believe the answer is c
The reason why progressives see the expansion of Government powers and the opportunity to reform American society is Economic rationalization, Spirit of nationa unity and purpose, social justice, and federal powers with increased prescience in Americans ail life.

the spinning wheel to produce textiles, the water wheel used to power machinery and the steam engine were invented. These inventions aided in speeding up the production of manufactured items.