urgent!!

Analogize or distinguish the following facts and those in Sinn v. Burd and decide if the factual differences change the outcome of whether the plaintiff would succeed in a claim for negligent infliction of emotional distress. Explain why. Which element of the claim must the court analyze?

a. The plaintiff, the mother of a child killed by a car, received a telephone call telling her that her daughter had been killed in an accident. She was four blocks away and arrived at the scene a few moments later.

b. The plaintiff looked through the window and saw her husband's car arriving at their house. She also saw a car speeding on the road behind his. She looked away for a moment and then heard a loud crash. The speeding car had hit her husband's car and killed him.

c. The plaintiff was a kindergarten teacher who saw one of the children in her class get hit by a car in front of the school. The child died from his injuries.