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.

The message with its number of bytes could not be sent in an email using the same internet connection because the _ is weak.
connection

A cough rose from Chad's lungs because the _ was afflicted by the serious sickness.
lung

The files had to be moved out of the closet and into the cabinet, as in the _ they were vulnerable to fire.

closet