After being bitten by a black widow spider, Jean starts to convulse. This is a result of __________.

a lack of GABA being released into her blood stream

a resurgence of neurotransmitters overstimulating her brain stem

a surge of chemicals blocking the transmission of fluids to the spinal cord

a flood of acetylcholine releasing into the body's muscle system

a resurgence of neurotransmitters understimulating her brain stem