Preterm babies are considered at risk because a. their immune systems are immature. b. they have too much surfactant in their lungs. c. their bodies generate too much heat. d. their gestational...

Preterm babies are considered at risk because

a. their immune systems are immature.

b. they have too much surfactant in their lungs.

c. their bodies generate too much heat.

d. their gestational age is 40 weeks and that is still too early to perform basic functions such as sucking.