Answer:
Referral Marketing
Explanation:
Referral marketing is the method of promoting products or services to new customers through referrals, usually word of mouth. Such referrals often happen spontaneously but businesses can influence this through appropriate strategies
 
        
             
        
        
        
The correct answer is - This research would be eligible for exemption because the researcher is not interacting with the children and the playground is a public setting. This type of research does not need IRB (IRB being institutional review board also known as ethics committee) review because the researcher will not be interacting with the children in anyway, it is purely observational and the setting is a public place, in addition all children will remain anonymous in the study, therefore the researcher is not breaking any code of ethics. 
 
        
             
        
        
        
I would go with a political conflict, because it came as a result of a longstanding social dilemma.
        
                    
             
        
        
        
<span>Labor
was divided among the Eastern Woodlands people by having men hunt animals
and some of them fished in the lakes and rivers, while most of the women
prepared food and used the animal skins to make clothing and moccasins.</span>
        
                    
             
        
        
        
The answers to your question are,
A. Flat bottomed boats;
B. Carts driven by animals;
D. Seagoing vessels.
-Mabel <3