Hello. You forgot to enter the answer options. The options are:
"Select the two correct answers.  A) A chronological structure is used to trace the evolution of currency from past to present.  B) Problem-and-solution structure is used to explain why debit cards are most popular today.  C) The author uses comparison to show how the value of bitcoin can vary wildly.  D) The author contrasts different currencies to explain why some are worth more than others."
Answer:
A) A chronological structure is used to trace the evolution of currency from past to present.
C) The author uses comparison to show how the value of bitcoin can vary wildly.
Explanation:
The author of "From Barter to Bitcoin" begins the article with a chronological narrative that shows how Bitcoin came into being and how it has evolved over the years. This is done to situate the reader on the subject being discussed and to prepare him for the next topics that will be covered in the article.
Once the reader understands what it is and how bitcoin has evolved, the author modifies the structure of the text, stopping to approach the facts in chronological order and establishing several comparisons that make the reader understand how the value of Bitcoin is relative and changeable and how it influences the use of that currency.
 
        
             
        
        
        
Answer:
B. 
Explanation:
it's the only one that doesn't make sense 
 
        
             
        
        
        
Metaphors that compare humans to animals "anthropomorphize" them. Anthropomorphization is a literary device that gives human qualities to animals. These metaphors may help to highlight the similarities between animal natures and human nature, which illustrates how truly similar every living thing is to each other. Hope this helps.