Research on the Synaptic Effects of LSD Has Shown All

Research on the synaptic effects of LSD has shown all of the following except

A) that it binds with high affinity to eight different receptor subtypes.
B) that the 5-HT_2A receptor appears to play a crucial role in drug-induced hallucinations.
C) that D₂ dopamine receptors are responsible for the behavioral effects of LSD in animal models.
D) that the intensity of psilocybin's subjective effects is positively correlated with 5-HT_2A receptor occupancy.