A researcher found a spike in Ca+2 release from muscle cells in response to epinephrin stimulation. The following describes the likelist signaling pathway that led to Ca+2 release. Group of answer choices Epinephrin>Insulin receptor>PI3K>Akt>Ca+2 transporter Epinephrin>GPCR>G-alpha-S>cAMP>PKA>Ca+2 transporter Epinephrin>GPCR>G-alpha-q>IP3>Ca+2 transporter Epinephrin>GPCR>G-alpha-q>cAMP>PKA>Ca+2 transporter