This idk but i have a friend who might know it thou
Answer:
He must have sight and sound separation from adults.
Explanation: test
An example of a social norm is that most people expect a 15 per cent tip.
<h3>What is a Social Norm?</h3>
Social norms refers to shared standards of acceptable behavior by groups.
Social norms can occur both in formal and informal settings that govern the behavior of members of a society.
Norms become social when they are accepted by a large number of people in a society.
Learn more about social Norms at brainly.com/question/1278457
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<span>D. Mexicans troops established a base in Texas.
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