In the knee jerk reflex shown in the figure, which of the following components of the reflex arc contains the integrating center? 
Definitions:
Sales Presentation
A speech or demonstration given to persuade a potential buyer of the value and benefits of a product or service.
Buying Decision Process
The series of steps a consumer goes through, from recognizing a need to the actual purchase decision.
Purchase Intentions
The probability or inclination of customers to purchase a product or service soon.
Selling Technique
Strategies or methods used to persuade customers to purchase a product or service.
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