The Kingdom of León was the strongest Christian kingdom.
"<span>All countries have discovered that profits will motivate firms to solve most, but never all, of their economic needs" is the best option from the list, corporations will ultimately always act in their best interest, which is not always in the best interest of society as a whole. </span>
Explanation:
The automobile gave people more personal freedom and access to jobs and services. It led to development of better roads and transportation. Industries and new jobs developed to supply the demand for automobile parts and fuel. These included petroleum and gasoline, rubber, and then plastics.