Answer:
Rice, beans, tortillas, and plantains are common foods in Central American countries.
Explanation:
The comma goes after beans.
Answer:
to solve problems and make life easier for humanity
Explanation:
The main basic purpose of nearly all technology is to solve problems and make life easier for humanity. This I think would be considered the basic purpose even thought it is very simplified. Technology also has the purpose of helping humanity expand our capabilities by allowing us access to information and abilities that would otherwise be considered impossible. These abilities and knowledge greatly increase our knowledge allowing us to pursue more complicated endeavors.
It was Dr. Martin Luther King Jr.
Choice C is correct. Been is a form of the be verb.
Hope this helps and please give brainliest!