You wouldn't try running a race without checking your shoelaces and eating a good meal; the same goes for your
car on a long trip.
• Take your car in for a tune-up. Be sure the oil has been
changed and the tires are at the correct pressure.
• Make sure your spare tire is in good condition, you have
a jack, and you know how to change a tire.
• Pack an emergency car kit that contains:
• Jumper cables
o A flashlight
- A socket wrench for changing a tire
Extra oil if your car is old
o A gallon of water
o Flares
Which sentence most accurately explains what's happening with the text
features in this excerpt?

D). Two sizes of bullet points distinguish between two levels of information.

Explanation:

The above statement correctly describes the use of text feature i.e. 'two distinct sizes of bullet points to differentiate the two varying degrees of the information' that he/she provides. Firstly, the bullet point is employed to denote the 'to-do list' while preparing for a long car trip like getting your car tuned up, keeping a spare tire, etc. While the smaller size of bullet points used later is to mark the list of items that an 'emergency car kit' must include like a flashlight, flares, jumping cables, etc.

Thus, the use of two distinct sizes of bullet points displays two levels of description(first is of the list of things that one should consider prior to a long trip and the second is the series of items an emergency car kit must contain).  

they insisted that there was not enough time to learn everything.  

explanation:

if they were going to steal the answers that is simply because they insisted that there was not enough time to learn everything.