Which of the following statements is correct?(Multiple Responses)

Suppose the state of Iowa passes a law that increases the price of cars by $500.  As a result, residents in Iowa start purchasing their cars in surrounding states. Which of the following principles does this best illustrate?

If a country has the comparative advantage in producing a product, then that country must also have the absolute advantage in producing that product.

Economics is the study of how society allocates its unlimited resources.

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An investment business project for sure requires:(Multiple reponses)

A marginal change is a small incremental adjustment to an existing plan of action.

Production possibilities frontiers cannot be used to illustrate tradeoffs.

Scarcity means that there is less of a good or resource available than people wish to have.

The pelvic girdle has many functions. Which of the following is NOT a function of the pelvic girdle?