How would the addition of a protein kinase A inhibitor affect the response of an adipocyte to glucagon? A. A protein kinase A inhibitor would block glucagon from binding to its receptor. B. A protein kinase A inhibitor would increase the cell's response to glucagon, enhancing fatty acid mobilization. C. A protein kinase A inhibitor would not affect the cell's response to glucagon. D. A protein kinase A inhibitor would decrease the cell's response to glucagon, weakening the signal for fatty acid mobilization.

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