Answer:
B. (i) and (ii) only
Explanation:
 A variable cost is a corporate expense that changes in proportion to production output. Variable costs increase or decrease depending on a company's production volume; they rise as production increases and fall as production decreases. Examples of variable costs include the costs of raw materials and packaging.
In Sonia's yoga studio, the only costs that change as the quantity of the good or service of the business produces changes are :
1. Tank tops
2. Wages paid to the other yoga instructors. 
These two costs can change as business becomes bigger and expands.
 
        
                    
             
        
        
        
Answer:
diminishing marginal rates of substitution.
Explanation:
Based on the information provided within the question it can be said that the principle that captures this is known as diminishing marginal rates of substitution. Like mentioned in the question this refers to the fact that a consumer chooses to replace a product instead of actually buying more. This decreases as you move down the indifference curve as shown below.
 
        
             
        
        
        
Answer: A business continuity plan
                            
Explanation: Business continuity planning refers to the procedure involved in creating a risk reduction and recovery scheme for a corporation from possible hazards. 
The strategy helps to ensure the protection of management and resources and the ability to operate rapidly in the event of an emergency. The BCP is usually designed in ahead of time and includes insight from relevant parties and staff.
BCPs are an essential part of any undertaking. Threats and disturbances result in revenue shortfall and increased costs, resulting in a decline in productivity. And companies can not rely solely on insurance since it does not cover all the costs and the clients that move to the contest.
 
        
             
        
        
        
False credit card is taking credit (money) from the bank to pay back w interest plus when you dont pay it back you go in debt therefore ultimately leading to bankruptcy