It's a very long sentence with a lot of information, but it is still only a simple sentence (option b): it has only one verb (taught). In order to qualify as a complex or compound-complex sentence, it would have to have at least 2 phrases, each with a different verb. 
        
             
        
        
        
Boston tea part 2 i think
        
             
        
        
        
<h3>Lewis and Clark</h3>
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Thomas Jefferson sent Lewis and Clark to explore the west of the Mississippi River. This took place in 1804.
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Good luck! :) 
~pinetree
 
        
        
        
Answer:
America's rich and varied natural resources played a key role in the rise of big business. The nation's abundant water supply helped power the industrial machines. Forests provided timber for construction and wooden products. Miners took large quantities of coal and iron ore from the ground.
Explanation: