Multiple Choice
After estimating a trend model for annual time-series data,you obtain the following residual plot against time. 
The problem with your model is that:
Understand the role of reflexes and unlearned responses in newborns' survival and development.
Understand the basic reflexes present in newborns and how they function.
Recognize the processes through which infants learn and adapt to their environment.
Identify the developmental stages of infants' sensory capabilities.
Definitions:
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