The answer is D. Infancy and old age.
I hope this helps. :)
I believe that it is B, because the term vivisection isn't commonly used amongst society, or what we consider is the "normal" type of topic to talk about. The answer be clarifies what exactly the type of testing is, which is medical.
"I feel that Auden's poem creations a more powerful and emotional response in the reader becuase, I feel, you can describe a subject better or deeper with words than with a painting. I think it takes a little bit of skill to completely understand what the author is feeling when viewing a piece of artwork. The initial understanding I got from the painting was that people are unaware of other's suffering because they are too involved in everyday life, but Auden's poem digs deep into the subject that people are unaware of other peoples suffering when it is indeed going on."
The correct option is A. American cowboys have their roots in spanish riding styles. This idea doesn't forget the keyword "American cowboy" nor the intention of the following sentences all related to "the roots of cowboys"
The option B is possible but the text focuses on explaining the origin of this cultural icon.
The option C just defines what Doma Vaquera means as a method for cattle herding
Although the option D presents important information about the origin of mexican riding style, it forgets the general concept of "american cowboy"
I believe that you are correct, because demand effects the price of everything. Not just for stocks. Whether a company is doing well with in the market will determine the over all worth of its stocks. If they are doing very well then the price will increase. If not the price will decrease.
Hope this helped! Let me know if I have to clarify or explain something more in depth!