You need to answer a given question containing a blank (_). Your answer must be one of the two objects mentioned in the question, for example "trophy" and "suitcase". Your answer must not contain a word that is not present in the question. Please don't use articles (e.g., the, a) before the answer.

Tom needed to decide if he wanted to use a homemade remover or commercial remover to remove the wallpaper, the _ version was harmful for the environment.
commercial

Mary decided she would stop drinking vodka, and only drink gin from now on, because she always seemed to have a hangover after drinking the _ .
vodka

Mary wasn't sure whether to leave the country by plane or ship.  She ended up choosing the _ because she was afraid of water.

plane