When someone is in an "impasse," they are likely to feel?

Being in an "impasse" refers to a situation where progress is halted due to a disagreement or a deadlock, making it impossible to move forward. Those experiencing an impasse often find themselves in a state of frustration and stagnation. Therefore, the feeling associated with an impasse is that of being stuck and unable to proceed, which aligns perfectly with the correct choice.

The other options represent feelings that are generally contrary to the sense of being at a standstill. Feeling hopeful and excited typically signifies anticipation of progress or positive outcomes, while content and satisfied imply a state of happiness with the current situation. Feeling relaxed and unbothered suggests a lack of concern or urgency, which would not resonate with the experience of being trapped in an impasse.