Answer:
A "The spring of 1998 was the Halley’s Comet of desert wildflower years." (lines 1–2)
Explanation:
This is the excerpt from Barbara Kingsolver's scientific essey "Called Out". It describes events in the spring of 1998 and gives insight on magnificent and complex life cycle of desert plants.
The given sentence provides description of the highway medians suggesting that there were unusually many flowers, rarely seen before.
That provides evidence to answer A. which claims that that spring was the Halley's Comet of desert wildflower years. Halley's Comet is a rare phenomenon that happens only once every 76 years, so by making this comparison, the author claims that what happened that spring was a true botanical rarity.
The answer is C: A teacher assigns a 10 page research project and says, "this might take a little time".
An understatement is a statement that underplays the significance, value, size, relevance or importance of something and it makes it seem considerable less than what it actually is. In this example, the teacher makes it seem like writing a 10 page essay will take just “a little time”, when in fact, any student knows that a 10 page essay in a considerable enterprise that will take a lot more than just a little time.
I think that the correct option is C: the role of the idiom in this sentence is to explain that bad habits are creating a bad financial situation.
An idiom may be defined as a figure of speech established by usage that has a meaning not necessarily deductible from those of the individual words. Idioms are not always meant to be taken literally.
In this case, the idiom is explaining the cause of financial situation.