Rachel Saw Her Sister Rebecca Being Hit by a Car

Rachel saw her sister Rebecca being hit by a car.She rushed to help her and later accompanied her to the hospital.Unfortunately her sister died several hours later.Rachel,who received psychiatric treatment as a result of the traumatic experience,sued for emotional distress.Which of the following is true for Rachel?

A) She is not entitled to recovery because she wasn't in the "zone of danger" created by the negligent act.
B) The courts will allow recovery because she made an attempt to stop the car which had hit her sister.
C) The courts will not allow recovery because she suffered only emotional trauma with no visible signs of physical injury.
D) She will be awarded recovery because she bore witness to the accident during which her own sister was killed.