Read the following paragraph and determine if the hypothesis is true:

Burnt Motor Oil<br>My dog Duke had an affliction where he kept scratching over and over. The vet told us that it was mange and to treat it with used motor oil. We splattered him with used motor oil, and he sat outside for a week. This was an indoor dog so it was truly sad for him, howling at night. Turns out it wasn't mange but an allergy to grass, common in mutts.

Pick your answer from:
 (a). Yes
 (b). It's impossible to say
 (c). No
Hypothesis: grass allergy is deadly to dogs



(b).