Which of the following represents explicit family money rules?

The choice indicating "Save money and never use credit" represents explicit family money rules because it clearly articulates specific guidelines and behaviors regarding financial management within the family. These rules are directly stated and understood by family members, providing a definitive framework for how money should be handled.

In contrast, the other options reflect more implicit or informal family dynamics around money. For example, "Money not discussed" suggests a lack of communication about finances, leading to unclear or undefined rules. "Father manages finances" implies a family structure and division of financial responsibilities, but does not explicitly define the rules of money management. Lastly, "Money is intuitive based on taboos" suggests an understanding of financial norms based on unspoken rules or cultural beliefs rather than clearly defined guidelines. Explicit rules provide clarity and direction, which is why the choice that promotes saving and refraining from credit use is the correct answer.