Can we draw the following hypothesis from the context (see options)? 

Context:

How to apply window decals<br>Determine if the conditions are right. You should only apply decals when the weather is mild. Don't try to apply decals when it is extremely cold or hot.

Hypothesis: Window decals will not stick if it is extremely cold.

 a). Yes;
 b). It's impossible to say;
 c). No;
b).