Children who justify excluding others from play because of their race by saying "it’s what’s always been done" are using

The children who exclude or remove others from the competition just by stating that 'it's what's always been done' employ:

- Conventional Reasoning.

Learn more about 'Reasoning' here:

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Conventional Reasoning.

Explanation:

Conventional reasoning is the second level in Kohlberg's Stages of Moral Development. In this stage, a child begins to learn moral values based on what their authoritative figures say. They begin to adhere to the rules andconventiones set up by their parents, society, friends, etc.

Therefore, in the given scenario, when children do not allow children of other race into their play justifying that 'it's what's always been done', it means that they are adhering to the rules and conventions set up by their authority figures.

Thus correct answer is conventional reasoning.

your answer would b. the missisipi river

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d. i assume the underlined word is "role." reformat if it isn't.

explanation:

role is closest to part because when replacing words, "playing a vital decision," "playing a vital activity," and "playing a vital dollar" don't make logical sense. the only meaningful choice is "playing a vital part."

this fits one of merriam-webster's definitions of role: "a function or part performed especially in a particular operation or process."