Which of the following is an example of a safe laboratory produced?
A) eating or drinking from laboratory glasware
B) Tying back long hair and lose clothing
C) testing an odor by directly inhaling the vapor
D) touching hot objects with your bare hands

Respuesta :

I think you meant to say "procedure" instead of "produced". 

Choice B is the answer as it is the safest and most sensible (to prevent damage to clothing or start a fire for example). The other choices are nonsensical or silly.