Answer:
A. Villagers are trying to decide whether or not to stone Mrs. Tessie Hutchinson.
Step-by-step explanation:
An external conflict within a literary work occurs when there is a problem, a fight or something that a character has to win or overcome and is related to other characters, or to a group of characters, such as a population, for example.
For this reason, we can say that in "The Lottery" an example of external conflict can be seen when villagers are trying to decide whether or not to stone Mrs. Tessie Hutchinson.