Refer to the graph shown depicting a monopolistically competitive firm. The marginal revenue curve is represented by curve: 
Definitions:
Corticotropin-Releasing Factor
A peptide hormone involved in the stress response by stimulating the pituitary gland to release adrenocorticotropic hormone (ACTH).
Adrenocorticotropic Hormone
A hormone produced in the anterior pituitary gland that stimulates the adrenal cortex.
Gluconeogenesis
The metabolic pathway that generates glucose from certain non-carbohydrate substrates, crucial for maintaining blood sugar levels.
Inflammatory Response
The body's protective reaction to infection, irritation, or injury, characterized by redness, heat, swelling, and pain.
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