A toxin with a shape identical to that of a neurotransmitter stops muscle contraction. Which statement accounts for the toxin stopping muscle contraction?
- AThe toxin blocks the binding of neurotransmitters to receptors on motor neurones.
- BThe toxin increases the release of neurotransmitters from relay neurones.
- CThe toxin increases the release of neurotransmitters from sensory neurones.
- DThe toxin stimulates impulses in motor neurones.