D) the law of increasing costs.
The correct answer is substance-related
Explanation: Substance-related disorders involve drugs that directly activate the brain's reward system. Activation of the reward system usually causes feelings of pleasure; The specific pleasure sensations evoked vary widely, depending on the drug. These drugs are divided into 10 different classes that have different but not completely different pharmacological mechanisms.
Answer:
Wan is connected to people with a variety of backgrounds.
Explanation:
While the second may be true, the first one is the answer. He is likely a part of a place like LinkedIn, where networking is key.
