The correct answer is A. Excludable and rival in consumption
Explanation:
In economics, one service or product is classified as excludable if it requires individuals to pay for it. This means the product or service can not be accessed by all people but only by those who pay. This applies to food, and therefore to pizza because you need to pay for it.
On the other hand, a product or service is rival in consumption if it can be enjoyed by only one consumer; this means, they can be used only once or they cannot be used by multiple consumers at the same time. This rivalry applies to pizza because once a person has eaten the pizza this product is no longer available. Thus, a pizza is "excludable and rival in consumption".
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Answer:
This is a quiet eruption caused by low-viscosity magma.
Explanation:
This quote can be placed into a whole lot of different scenarios, it is all about perspective. For example, people who are pro-life are currently fighting against what is now the social "norm" of abortion. It is through their determination to stop abortion that they are making a change in the world. The same could be said for many things, regardless of how you feel about the topics. Here are just a few examples; homosexuality, legalization of marijuana, or even something as extreme as sex trafficking. Basically what Oscar Wilde is saying, is that if we are too afraid to step up and make change because of the consequences, then that change will never be made at all. The only meaningful changes that have happened throughout human history, were never easy (slavery), but were ultimately the right thing. The right thing to do, is not always the easy thing to do.