Como marcar la presencia de una cita texual​

Does anyone know what my spanish teacher means by this? i need to use plural forms of the verb ser. and she asked me to use a couple of adjectives to describe the boys collectively and then the girls collectively?

Question 2 multiple choice worth 2 points) which of the following means "she has just arrived at school"?

3. choose the answer that best completes the sentence. (hablar) con mi amiga elena. (2 points) a: hablan b: hablas c: hablamos d: habla