Which of the following best defines 'interact'?

• A. To communicate with and react to another human.
• B. To act on.
• C. The act of communicating and acting with other individuals.
• D. Between two levels; between basic and advanced.

Answer: (A)

Interacting is about engaging with others in a two-way process that involves both sharing information and responding to what the other person says or does. It’s the back-and-forth that shows social engagement, not just doing something or only talking. The best choice expresses this two-way dynamic by stating to communicate with and react to another human, which captures both the exchange of information and the response aspect. The other options miss part of this idea: one focuses only on acting, missing the communicative/responsive side; another uses a noun form that isn’t as precise for the verb; and the last option is unrelated to the concept of interaction.