Frans avoids talking with food in his mouth because he knows others think it is socially inappropriate. this best illustrates the impact of:

norms

Explanation:

According to my research on society standards, I can say that based on the information provided within the question this best illustrates the impact of norms (Society Norms). This term is defined as the set of acceptable/correct behavioral actions set forth by the environment/society around you. Going against these norms can cause stress between you and the society.

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4 because 4 is godly

answer; their own memory abilities;