How does the author develop her analysis of the benefits and risks of dopamine’s reward system?

The answer lies in the brain circuitry known as the “reward system.” The regions of the brain comprising the “reward system” use the neurotransmitter dopamine to communicate. Neurons that release dopamine are activated when we expect to receive a reward. Dopamine also enhances reward-related memories

Explanation:

frederick william of brandenburg-prussia trained his son, frederick, to be a hardy soldier. but frederick disliked rifle shooting and horseback riding. unlike his father, he was interested in french literature. he enjoyed poetry and music and, like some others of the enlightenment, he scoffed at religion. his father thought him soft, frivolous and unmindful of his duties. and when frederick refused to put his signature on a right to succession, for a few moments his father strangled him.

that would be the steamboat because none of the other things are forms of transportation