How do taste and ghrelin promote eating and arousal?

a. They increase excitation from the paraventricular nucleus to the arcuate nucleus, an area that excites the lateral hypothalamus.

b. They increase inhibition from the paraventricular nucleus to the arcuate nucleus, an area that inhibits the lateral hypothalamus.

c. They increase excitation from the arcuate nucleus to the paraventricular nucleus, an area that excites the lateral hypothalamus.

d. They increase inhibition from the arcuate nucleus to the paraventricular nucleus, an area that inhibits the lateral hypothalamus.