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

Context:

Fleas<br>My dog has fleas and constantly scratching himself. I took my dog to the veterinarian office. The veterinarian gave my dog two shots. Eventually the fleas started to die. My dog finally stop scratching himself.

Hypothesis: My dog had never been to the veterinarian before this.
OPTIONS:
* Yes.
* It's impossible to say.
* No.
It's impossible to say