Answer:
 b. social benefits will be greater than private benefits
Explanation:
Positive externalities can be defined as those that produce positive effects for society in relation to the consumption of a good or service.
This is because the social benefit is the sum of the private benefit plus the sum of the external benefit.
An example of positive externality pertinent to the present is the fact that vaccinating people generates greater positive effects on society, because when vaccinating an individual there is less chance of having more people infected with some disease.
So it is correct to say that the social benefits will be greater than the private ones. Letter b.
 
        
             
        
        
        
I found this online : 
In law, common law (also known as judicial precedent or judge-made law, or case law) is the body of law created by judges and similar quasi-judicial tribunals by virtue of being stated in written opinions. The defining characteristic of “common law” is that it arises as precedent.
        
             
        
        
        
Answer:
increase price per ticket.
Explanation:
increase price per ticket in proportion to cost incurred.
set up an internal control system to ensure all revenue from ticket are well accounted for.
 
        
             
        
        
        
The question is incomplete and should state "Recent rains increase the demand for kayaks, as paddlers want to take advantage of the exciting river conditions on the Oconee river. New plastic technology makes kayaks less expensive to make, as a result, one should expect the equilibrium price of kayaks to purchased to fall and the equilibrium quantity of the kayaks to raise." The questions is also a true or false question. The answer will be false. It is false because both the equilibrium price will raise and so will the quantity. The increase in demand will will create a new curve in the demand which will raise the prices and the companies will make more kayaks.