The only neurotransmitter used for signaling by the purkinje neurons is
a) glutamate
b) glycine
c) dopamine
d) gaba

GABA

Explanation:

Purkinje neurons are located in the cerebellar cortex of an organism. These neurons receive impulse from the granule cells. These neurons were discovered by the czech scientiest Purkyne.

GABA ( Gamma amino butyric acid) is the only transmitter used by the purkinje cells for signalling. The GABA neurotransmitter blocks the neurotransmission and shows the inhibitory actions on cells.

Thus, the correct answer is option (D).