Answer:
C.  a big party where everyone in the town would help to build a person's house
Explanation:
Typically, house-raising is more popular in rural community and almost never happen in Urban Area.  In most cases, it's held to help out the neighbor who somehow experiencing some unfortunate disaster (House broke down because of flooding, burned because of gas leak, etc)
The materials used in house-raising usually came from the environment around the neighborhood.  In United States , house-raising is most common in states such as Louisiana and Vermont.
 
        
             
        
        
        
Answer:
 Father is disappointed with the boys and asks them to apologize to Mr. Duvitch
Explanation:
 
        
             
        
        
        
Answer:
Tropical systems are warm-core weather systems that only form over water. They have no fronts associated with them but typically generate more rain than extratropical systems. ... Subtropical systems are a cross between an extratropical and a tropical system, having characteristics of both. They can be warm- or cold- core.
 
        
                    
             
        
        
        
The answer about Behavior modification is explained below.  
Explanation:
When a behavior, which is undesirable, is changed or modified by using a therapeutic approach, it is called as the behavior modification. 
People's behaviors are modified using a system of positive or negative consequences, through which people learn the correct set of responses for any stimulus. 
There are many types of behavior modification. Some are as follows:
- Positive reinforcement.
 - Negative reinforcement.
 - Punishment.
 - Extinction, etc.
 
Behavior modification is considered to be violating a person's freedom and self determination, because people are made to learn some predefined rules and standards, rather than acting on their own. That is why their freedom of self expression and self determination is often seen to be violated. 
Learn more about Behavior Modification at:
brainly.com/question/5037977
#LearnWithBrainly
 
        
             
        
        
        
Answer: Keep discussions on proper track
Explanation:
Discussion forums are the online board where people can place their message to obtain a response from members of that bulletin board.It is also regarded as discussion board.It helps in keeping discussion on the subject and points on which it is supposed and intended towards .Any distraction can be avoided.
Other options are incorrect because discussion forums do not compel every member for participation, synchronous communication facilitation and motivating immediate response from people.