Answer:Nice try to the other person,However the correct answer is answer choice C "They should last 20 to 30 minutes." Like if i helped you,thanks.
Explanation:
 
        
                    
             
        
        
        
Because humans have five senses: feel, see, taste, hear, and smell. When you step on a nail you basically going to feel it and you brain can sense that and it can trigger nerves which can cause pain.
        
             
        
        
        
Answer:next bc you got it correct I believ 
Explanation:
 
        
             
        
        
        
Answer:
Explanation below.
Explanation:
It should be understood that one of the major work that researchers faced is the collection and arrangement or analysis of quality data. This is usually a tedious work and sometimes overwhelming.
But to avoid these by the researcher, he/she can engage in the methods mentioned below.
1. Training of interviewers and coders
2. Identifying and making use of data collection software.
These two methods will definitely relief the researcher from being overwhelmed by the work.
 
        
             
        
        
        
Answer:
A. They destroy antigens because they are a foreign object.