Wait which one do u need help on?
The answer is "an infinitive verb".
Acabar de + infinitive is used to express an action that has ended prior the enunciation of the sentence.
Answer:
Good morning I hope you had a great day and you are doing very well in your homework.
Signed,
your Spanish teacher Mrs. Robinsion.
Explanation:
DFGHJUIYTRFVCBNMJUYTREDCVB,KJRFED
The third one is relevant (servicio de mensajes escritos y precio del plan).