Ionotropic receptors are found at synapses operated via A) ...

[geoffrey]

Ionotropic receptors are found at synapses operated via
A) ligand-gated ion channels.
B) second-messenger-gated ion channels.
C) electrical synapses.
D) inhibitory, but not excitatory, synapses.
E) excitatory, but not inhibitory, synapses.

[j_sun]

I recall doing this last year, it's A, bye bye!