Use the figure below to answer the following questions. 
Figure 1A.3.9
-Refer to Figure 1A.3.9.Which one of the graphs shows a line with a zero slope?
Definitions:
Newborn
A newborn refers to an infant in the first few hours to weeks of life, undergoing significant physiological adaptations after birth.
Pink
A color often associated with femininity, love, and tenderness, made by combining red and white.
Infant Pulse
The rate at which an infant's heart beats, a critical indicator of health and cardiac function.
Toddler
describes a young child, typically between the ages of one to three years, who is learning to walk and developing rapid physical and cognitive growth.
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