Answer:
D) ir en bicicleta
Step-by-step explanation:
A would be incorrect because their house isn't very far, so they wouldn't need to take a train.
B would also be incorrect because they said they wouldn't like to go in car.
C would definitely be incorrect because it is an airplane.
D would be correct because they said they would not like to walk, not in a car, nor a bus, so a bicycle would be a reasonable answer.
Hope I helped!