If producing more consumer goods (A) requires sacrificing some capital goods (B), then producing more education (C) would require sacrificing which of the following (D)?

When we talk about opportunity cost, we mean what we give up to get something else. If producing more consumer goods, like toys or clothes, means we have to use some of our resources that could have made capital goods, like factories or machines, we see a trade-off. Similarly, if we want to produce more education, which can be thought of as investing in schools and teachers, we might have to sacrifice other services or goods that could have been produced instead. For example, if a city decides to build a new school, it might have to reduce spending on road repairs or public parks. This shows that every choice we make comes with costs, and we need to consider what we are giving up when we decide to invest in something like education.