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.

[Q]: The horse needed special medication for its skin to treat the parasite that it was infected with, because the _ was inflamed.
[A]: skin


[Q]: The forecast was very good for Wednesday but not for Thursday because on the _ it was going to be cold.
[A]: Thursday


[Q]: Teresa tried to open the white envelope by hand using her right index finger, but the _ was weak so Teresa asked mother for help.
[A]:
finger