Answer:
Book: The Jilting of Granny Weatherall
Author: Katherine Anne Porter
Sixty years earlier Ellen, or the dying grandma, was supposed to marry a man named George but he left her on the day of their wedding. Out of spite for George she married John and started a family with him.
The effect was that sixty years later she refuses that she is dying and she is also very harsh with ther family.
The answer that is a collective noun is cattle.
A collective noun refers to numerous entities, and cattle can refer to many cows, for example. You cannot say cattles, which is another way to think of collective nouns - they don't have plural form.
An is the indefinite article in this sentence. A indefinite article is usually a or an (pronunciation word)
He is upset and wants the killers to pay for their crimes.