Answer:
Option (B) is correct.
Explanation:
Unit of account:
There are some functions of money or we can say that characterstics of money:
(a) Medium of exchange
(b) Store of value
(c) Unit of account
(d) Standard of deferred payments
Sea shells are precious items but one cannot properly split divide those sea shells into small denominations like money does. Money is easily storable, people use as a medium of exchange and unit of account. 
By unit of account we mean that we can easily measure the value of goods and service and many things in monetary terms but we cannot measure in terms of sea shells.
That's why sea shells unfit to act as money today.
 
        
             
        
        
        
Answer:
$175,100
Explanation:
Job 523 started on June 1 and ended on July 15
The total cost on July 15 was 10,800
The cost added in July was 164,300
Therefore the debit to cost of goods sold can be calculated as follows.
= 10,800 + 164,300
= 175,100
Hence the debit to cost of goods sold is $175,100
 
        
             
        
        
        
Scientific method involves ways in which you would solve something while the others are just assuming or wondering what could happen.
        
             
        
        
        
Your answer is d.should deduct toe outstanding fees from the refund expected.
        
             
        
        
        
Answer: Option (D) is correct.
Explanation:
Correct: The country’s production possibilities curve will shift out. 
The production possibility frontier shows different combination of two goods that are to be produced with the available resources. It also shows the point on the curve which represents the efficient level of quantity to be produced.
So, if there is any improvement in the factors such as technology advancement and level of education will generally results in higher economic growth and increase in the level of output.  
Hence, there is an outward shift in the production possibility frontier.