Luteinizing hormone (LH) binds to receptors on ovarian theca cells and activates a Gs protein. Which intracellular signaling molecule is produced directly after activation of adenylate cyclase?

• A. Cyclic AMP (cAMP)
• B. Inositol trisphosphate (IP3)
• C. Protein kinase C (PKC)
• D. Calcium-calmodulin complex

Answer: (A)