Describe the common mechanism of action of molecules that taste sweet umami and bitter

Chemicals that have sweet, bitter, and umami tastes have exactly similar intracellular signaling molecules. It is composed of g proteins attached receptors and is precisely the equivalent second messenger pathways that transmit signals to the afferent axons. The gustatory axons distribute the taste to the brain separately.

i believe the answer would be b. hope it : )

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