Provide the structure for each product (A-D) in the following reaction sequence. 
Definitions:
Permanent Break
A cessation or end of a situation, relationship, or agreement that is intended to last indefinitely, with no expectation of resumption.
Improvement Opportunity
A situation or instance that can be modified or enhanced to increase efficiency, effectiveness, or satisfaction.
Golden Rule
A principle that encourages treating others as one would want to be treated, emphasizing empathy and ethical conduct in interpersonal interactions.
Ethical Customer Service
A business practice that involves providing services to customers in a manner that is fair, transparent, and respectful to both consumer rights and wellbeing.
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