3-Month-Old Marco Has Died Unexpectedly While Sleeping in His Crib

Multiple Choice

3-month-old Marco has died unexpectedly while sleeping in his crib during the night. He seemed healthy at birth, and his doctor did not detect any major health issues during his regular checkup 2 weeks ago. The doctor concludes that Marco had stopped breathing during the night and died with no apparent cause. Which of the following is mostly likely the reason for Marco's death?

A) anorexia
B) down syndrome
C) sudden arrhythmic death syndrome
D) sudden infant death syndrome