As an infant grows toward preschooler age, resting heart rate and blood pressure

The infant's heart rate decreases as they grow and their blood pressure increases. The normal heart rate of infant is at 70 to 190 but as they reaches toddller age it is decreased to 60 to 140. However blood pressure increased as the child grows as blood pressure is quite dependent on size and the weight of the child.

Ithink option a is correct because you cannot donate a different blood group than yours because it won't match.option a says betsy can donate to mark. they have the same blood group so donation can happen.