[Solved] Which of the following is a reason why adolescents become addicted to smoking? A)It is seen as a horrible habit and is a grotesque way to commit suicide. B)It is glamorized by figures in popular culture such as actors in pornographic films. C)The nicotine in cigarettes is highly addictive. D)Adolescents think that smoking cigarettes is safer than using illicit drugs. MC = MR: The point where Marginal Cost equals Marginal Revenue, considered the optimal point of production for maximum profit. ATC Curve: A graph showing the average total cost of production at different levels of output, illustrating how costs vary with changes in output. Economic Profit: The difference between a firm's total revenues and its total costs, including both explicit and implicit costs, reflecting the total financial gain. Perfectly Competitive Industry: A market structure characterized by many buyers and sellers, free entry and exit, homogeneous products, and perfect information, leading to price takers on both the supply and demand sides.