When a business has more than one price it must avoid$\_\_\_\_\_\_\_\_$ among people who are paying the$\_\_\_\_\_\_\_\_$ price.

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Part $1$

A$.$

$$resentment; higher

B$.$

$$jealousy; higher

C$.$

$$resentment; lower

D$.$

$$deregulation; lowerE.

$$deregulation; higher