The sentence that contains a dangling modifier is C) Looking through the window, the room seemed very large.
It is dangling because we don't know who the participial phrase <em>looking through the window </em>refers to. It certainly doesn't refer to the room, the room wasn't looking through the window.
There are no "shown" because you didn't give us anything, nobody can help without resources for questions like this!
The correct answer is b. people who gather census information
Even though enumerators might have made mistakes the data sticks, and the enumerators are people who collect the data about the census.
Answer: A cantankerous black stallion named Old Whip might be one of the great, unsung heroes of the Texas Revolution. The big horse was a tall, muscular half-thoroughbred that belonged to Allen Vince, a gentleman from Missouri. Vince came to Texas as part of Stephen F. Austin’s colony. We can only speculate on why the horse was named Old Whip, but it seems possible, given the stories about the horse’s independent nature, that his owner was forced to resort to the whip occasionally to modify the stallion’s behavior
Explanation: