Answer:
The answer is b. understanding is based mainly on basic sensory and motor abilities. 
Explanation:
During the sensorimotor period, children's understanding is based mainly on basic sensory and motor abilities. 
 
        
             
        
        
        
<span>The U.S. provided them with loans, it practiced dollar diplomacy with them, American gave them money free of charge, it rebuilt their industrial complexes.
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Answer: age-related
Explanation:
age-related cognitive differences. 
 
        
             
        
        
        
True more americans goods were produced by the american tribe