Answer:
who
Explanation:
"who" is used to a subject of the sentence
"whom" is used to an object of the sentence
e.g. I always make my friend, whom isfrom New York, laugh.
"whose" is used to an possession of a subject/ object
e.g. My friend, whose apartment is in New York, makes me laugh.
To what passage are we evaluating? There is no picture or further text for us to observe.
What does stifiled mean in my sentence it is My dog stifled away.