The key is national health
Clarence Darrow is going to be the right answer
The correct answer should be the train. Railroads were built and these helped people transfer goods and heavy things like machines all over the country. Railroads were key for everything in the 19th century.
<span>Some of the obstacles you can prevent you from getting or keeping a job as you begin to plan for your future career are:
-</span><span> Living in a comfort zone. - you must have the courage to take steps outside your usual comfort zone
- </span>Negative mindset<span>. - positive attitude is very important
- Lack of focus- be focused on your goals and ideas!</span>