Answer:
C. Step variable cost
Explanation:
Fixed costs are those costs which are incurred anyways irrespective of the level of operation of a business or the volume of activity. For example rent of factory is a fixed cost which has to be incurred regardless of the production level.
Variable costs are those costs which vary with the level of production. e.g labor cost.
In this case, a T- shirt is given to every 100th customer.  This kind of cost is step cost at the level of 100th customer. The number of T-shirts in a day would depend upon the no of patrons arriving each day i.e variable. 
Thus, this is the case of a step variable cost which is incurred at discrete point i.e every 100th customer.
 
        
                    
             
        
        
        
Answer:
D) The broker-dealer must be registered in State B in order to contact the client while she is in medical school in State B
Explanation:
Since the client will live in state B for an extended period of time, at least 4 years if she completes medical school, the broker-dealer must be registered in state B if he wishes to continue doing business with her. 
If the client would have only gone to state B for a few months, then the broker could have still worked with her without registering in state B since the client could be considered on a vacation trip. 
 
        
             
        
        
        
D. Finding Out What The Taxes Will Be
        
                    
             
        
        
        
This statement is false.
Conversion and direct materials are generally both not added at the end of the production process. As a matter of fact, they are either added at the beginning, or in the middle of the process, but definitely not at the end because then it would be too late.
        
             
        
        
        
Answer:
Reduce
Explanation:
The answer is that Berryhill chose to reduce the risk of being crippled by computer virus. A risk refers to the potential of having a situation that can cause a negative effect or the loss of something important. In this case,  Berryhill reduced the risk because the company was worried that a computer virus would affect the operation and they decided to minimize this danger by installing an anti-virus and building a firewall.