string synaptic transmission of nerve impulse, neurotransmitter (p) is released from synptic vesicles by the section of ions (Q). Choose the correct P and Q
A. P-acetylcholine, `Q-Ca^(2+)`
B. P-acetylcholine, `Q-Na^(+)`
C. P-GABA, `Q-Na^(+)`
D. P-cholinesterase, `Q-Ca^(2+)`