Which mode of transportation best completes this sentence?

viajar en es rápido, pero el boleto es muy caro.
a.
carro
b.
bicicleta
c.
motocicleta
d.
avión

i’d say d because the tickets for a plane are expensive

answer; viajar en AVION es rápido, pero el boleto es muy caro

so what i did was i used google translate and this is what i got. where do you live? what do you do in your free time? what kind of music, food, sports do you like? what is your favorite color? who is your favorite artist? so what they are doing is asking u questions about urself and u have to respond in spanish or english i bealive. hope this : )