A nurse in the newborn nursery is determining admission vital signs for a newborn infant. The nurse documents that the heart rate is within normal range

A nurse in the newborn nursery is determining admission vital signs for a newborn infant. The nurse documents that the heart rate is within normal range if which of the following is noted on assessment?
a) 80 beats/min
b) 90 beats/min
c) 120 beats/min
d) 180 beats/min