<span>Trade and shipping spreads ideas. Also intermarriage by noble families to cement treaties and commercial interests. Artists would also travel to different "schools" to learn the techniques they offered.</span>
<span><span>Because
they activate "</span>
the nucleus accumbens and the
ventral tegmental area".</span>
Ventral tegmental region (VTA) includes cell collections of
dopaminergic neurons anticipating to the core accumbens, amygdala, hippocampus,
and prefrontal cortex. These neurons are fundamentally involved in cerebrum
components of reward, support, and passionate excitement. Their action has been
firmly corresponded to the accessibility of essential rewards, for example, nourishment,
water, and sexual conduct.
C i think is the right answer
