Option A contains you fragment, the second scentence does not contain a noun.
How am I supposed to know if I haven’t read the paragraph.
Answer:
c. The loss of value from not reading or sleeping
Explanation:
Opportunity cost refers to the value of the best alternative that is not selected. In that respect, even though it is not clear which alternative is favored , and the question only asks about the opportunity cost of eating, then the cost of value can be deduced to be related to the choices that were not selected, which in this case are reading and sleeping.
Write about anything that comes to mind.
Answer:
Maria should look in the engineering terminology book for the meaning of 'columns' or look in the dictionary for its technical meaning.
Explanation:
In the context, Maria who is referring an online text source, is reading about some engineering process. She comes across the word 'columns' which she believes she knew its meaning but she verify by looking the meaning of the word 'column' in an engineering terminology book.
She can also refer to a dictionary and look for its technical meaning. As in typography, the word 'column' means a vertical division of any page or the text. But in engineering, a 'column' may refer to a vertical pillar.
