The imagery in sentence 4 is mainly intended to reinforce the passage's
depiction of Marie as

Reluctantly following someone’s directions.

Explanation:

The given question refers to an Accuplacer reading practice test about two teenagers who decide to steal from a local bodega.

This is the beginning of the test:

As Marie placed her hand on the cold handle of the door, she felt a chill run through her body. Her parents would be home soon, wondering where she was, but this was something she had to do. She looked back at Jessica, who only yesterday was mocking Marie in front of their classmates for her braces and good grades, and thought she saw a hint of worry on Jessica’s face. If it had been worry Marie saw on Jessica’s face, it was quickly gone, replaced with a steely stare that shoved Marie through the door and into the bodega.

The options you were given are the following:

The imagery in the fourth sentence is mainly intended to reinforce the passage's depiction of Marie as reluctantly following someone's directions. Stealing isn't Marie's thing, but it seems like she wants to be accepted by her peers. That's why she follows Jessica's directions, despite this not being something she'd usually do.

im not sure about this one

answer: ok heres what i got on google

explanation: to recognize illness in frogs, toads, newts, or salamanders, look for the following signs:

inactivity or unusual behaviors. the first thing you might notice in your amphibian is abnormal behavior or appearance.

gradual or sudden weight loss.

body/abdominal bloat.

skin blotches.

eye cloudiness.

edema.