Put the following events in the order they occur, resulting in depolarization of the olfactory receptor neuron membrane. 1. Adenylyl cyclase converts ATP into cyclic AMP 2. Cl- efflux depolarizes the olfactory receptor neuron 3. Odorant binds to receptor 4. Receptor binds to Golf which dissociates into Galphaolf and beta-gamma subunits 5. cAMP binds and activates cyclic nucleotide-gated Na and Ca2 cation channel 6. Galphaolf binds to and activates adenylyl cyclase 7. Ca2 activates a Ca2 gated Cl- channel A. 4,3,1,5,6,7,2 B. 3,4,6,1,5,7,2 C. 4,7,2,5,6,1,3 D. 3,5,6,4,1,7,2