Answer:
A. A young girl enjoys playing games of make-believe with the dolls
and stuffed animals she has in her bedroom.
Explanation:
A conflict in a plot is defined as any struggle between opposing forces. Conflict the main deriving force of the story. Without a conflict the story will not be a story.
Option A has no conflict as there is no force opposing the young girl's playing with dolls and stuffed animals.
Option B has a conflict that the older man is not able to recall his experiences in World War II.
Option C has a conflict that he gets a flat tire but has to reach in time for work. The conflict in this case has already been resolved as well.
In Option D, the student has to work hard to impress Harvard, and become the valedictorian. This is not an easy task.