Based on the following scatter plot,which of the time-series components is not present in this quarterly time series? 
Definitions:
Brain Disease
Any condition or disorder that affects the brain’s structure or function, impacting mental and physical health.
Temporal Lobes
Brain regions involved in processing auditory information and are also key in the formation of memories.
Auditory Cortex
The region of the cerebral cortex that processes auditory information, located in the temporal lobes of the brain.
Motor Cortex
An area in the cerebral cortex focusing on the strategizing, oversight, and execution of movements performed willingly.
Q11: Referring to Instruction 16-6,what is the value
Q15: Referring to Instruction 15-10,the calculated test statistic
Q42: The method of least squares may be
Q48: Referring to Instruction 12.13,the standard error of
Q49: Referring to Instruction 12.4,the error or residual
Q93: Referring to Instruction 15-14,the value of the
Q113: Referring to Instruction 15-9,at 5% level of
Q130: If the residuals in a regression analysis
Q178: Referring to Instruction 14-6,the best interpretation of
Q212: Referring to Instruction 13.25 Model 1,you can