Would be B, are you not going to shower
1. Por is used to ask questions (por es usado para hacer preguntas)
2. Por is used to refer someone (por es usado para referirte a alguien)
3. Por is used to answer a question (por es usado para responder una pregunta!
Answer: Tengo prisa.
Explanation: tengo prisa means “I am in a hurry” and that is what Pablo is feeling since he lives far away from the airport and it is 3:30 pm and he needs to be on the plane by 4:00 pm.