I believe the answer is:
C. within 30 minutes
30 minute is the average time needed by human body to start lowering the amount of blood alcohol inside it. Consuming another alcohol below 30 minutes time frame would only accumulate the Blood Alcohol level and make you much more likely to experience the negative effect of alcohol.
 
        
                    
             
        
        
        
By taking their pump as many times a day as prescribed of take it when needed.
        
             
        
        
        
Generally it can either be ones feelings about oneself or ones past experiences, usually the two link in some way