You go to your house by plane
Mi familia ESTA mirando una pelicula
usted ESTA cansado
The best answer to this sentence is C. Preferiria because it's only talking about one person, like "yo" means "I'. And the rest of the answer choices are talking about more than one person..
Translated - I "would rather" (means preferiria) travel by road and I would stay in a youth hostel.
So.. yea the answer is C. Preferiria. Glad to help!! :)