Cassie’s mom asked her if she thought her boyfriend was cheating on her. cassie replied that nathan would never cheat on her and her mother should mind her own business. cassie’s inability to suspect nathan of cheating demonstrates the concept of
a. truth biasb. proximityc. circumscribingd. equity theory

Truth Bias

Explanation:

According to my research on studies conducted by various sociologists, I can say that based on the information provided within the question this is demonstrating the concept known as Truth Bias. This is when an individual is inclined for whatever reason (usually because there is a sort of attachment to the other person) to believe someone, even when there are signs of deception and they should not be believing them.

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i only have part a but here is the first one: - lewis and clark are born

- lewis marries sacajawea and clark is jealous  

- clark drowns lewis and then goes to jail