Question

the professional set up process, the walkthrough of the benefits like languages and social media packages, and the signing of the five year contract all exemplify ethos because
they appeal to the stokes emotions.
they make the parents doubt their choices.
they are examples of the company establishing itself as a legitimate and trustworthy entity.

Explanation:

Ethos is a rhetorical appeal focused on establishing credibility, legitimacy, and trustworthiness. A professional setup, clear benefit walkthroughs, and formal long-term contract all serve to prove the company is a reliable, legitimate entity, which aligns with the definition of ethos. The other options are incorrect: appealing to emotions is pathos, and causing doubt is not related to ethos.

Answer:

they are examples of the company establishing itself as a legitimate and trustworthy entity.