Which of the Following Is an Example of an Enforcing

question 53

Multiple Choice

Which of the following is an example of an enforcing restriction?

• A) ensuring each row has a primary key
• B) verifying there are no null values
• C) verifying there is at least one secondary key in each table
• D) ensuring values in foreign keys are legitimate

Comprehend the concept and calculation of individual and market demand elasticity.

Explain consumer surplus and how it is affected by changes in price.

Grasp the first law of demand.

Understand the effect of government policy changes on demand elasticity.