Kim Is Having Difficulty Coping with the Death of Her

Kim is having difficulty coping with the death of her baby who appeared healthy at birth but stopped breathing and died with no apparent cause within 4 days. The doctor who attends to her baby informs her that her baby died in his sleep during the night. He also tells Kim that the reason for the baby's death is unknown. Which of the following is most likely the cause of the baby's death?

A) asthma
B) sudden infant death syndrome
C) sudden arrhythmic death syndrome
D) pneumonia