After Martha's Baby Was Born, Why Did the Physician Apply

After Martha's baby was born, why did the physician apply a gauze dressing for a short time on the umbilical cord and give the baby a dose of vitamin K?

A) Newborns do not have any platelets for the first 3 months and will bleed freely unless actions are taken to prevent bleeding.
B) Newborns often show elevated platelet counts at birth, and both of the actions taken by the physician will help the umbilical cord stop bleeding.
C) The physician knew that the baby would need vitamin K to replace the red blood cells lost during delivery.
D) Newborns often have a reduced number of platelets, which are needed to clot blood, and both of the actions taken by the physician will help the umbilical cord stop bleeding.