a complimentary response a control system negative feedback positive feedback
I am hesitating between 4 options to answer the following question, which option should I choose?
Question: In a series of chemical reactions, X→Y→Z→A, X converts to Y, Y converts to Z, and Z converts to A. Which term describes the process if the production of A interferes with the conversion of X to Y?
Possibilities:
- a complimentary response
- a control system
- negative feedback
- positive feedback

negative feedback