When the potential exists for exposure to exhaled air of a person with suspected or confirmed TB, a(n) ________ mask should be worn by the EMT

A helpful resource book is Grays Anatomy

A) ?comma B) ?hyphen C) ?semicolon D) ?apostrophe

____, by definition, is the lack of sensation, painful or otherwise.

A. Analgesia B. Palliative C. Sedative D. Anesthesia