I think the answer is C, irony, because the quote is definitely not imagery nor anecdote, and it is not making reference to a famous literary work, idea, nor person, eliminating the choice of allusion as well.
Give (something, especially money) in order to help achieve or provide something.
Answer:
Few advancements in scientific knowledge were made. Scientists discovered new evidence to support their theories. Scientists discovered that old interpretations of data was incorrect. Scientists used observations and mathematical data to solve problems in new ways.
Explanation:
To prepare readers for the difficulty of the days that lay ahead.
