Answer:
Option C. 
Explanation:
A fixed-ratio schedule is one that offers a reward every X amount of responses. This number will always be the same to create a habit. 
The fixed ratio in this example is 10. Every 10 responses, you receive a reward within the game.
This leads to steady and constants responses until the reward is delivered.
 
        
             
        
        
        
Answer:
B. 
Explanation:
They weren't allowed to vote until 1970
 
        
                    
             
        
        
        
Answer:
Is initially neutral, and then comes to trigger a response.
Explanation:
In classical conditioning the conditioned stimulus is a previously neutral stimulus which gradually comes to cause a conditioned response after being associated with the unconditioned stimulus. Classical conditioning is a type of learning in which a conditioned stimulus is combined with an unrelated unconditioned stimulus to elicit a behavioral response known as a conditioned response. A response occurs with more regularity in a well-specified, stable environment. One of the key components of conditioning is a conditioned environment. 
 
        
                    
             
        
        
        
Relationships in nature are described by their interactions with other living things.