Answer and Explanation:
Efficiency and equality:
We have given the information that there are two areas one has many small school and another has few large schools. The area which has many small schools faces a large competition as there are large numbers of school in that area. In order to maintain equality and efficiency the voucher system should announced in the area which has few large schools. Introducing the voucher system in this few large school region help to maintain equality as there is less competition. Whereas the introduction of the voucher system in an area which has many large schools increases the inequality as there is high competition and this inequality also stimulated by the migration factor. So, these are the effects of voucher system in different areas.
Answer:
a. 1, and total revenue and price move in the same direction
Explanation:
Unit elasticity of demand is when a change in price leads to a proportional change in quantity demanded.
A good has a unit elastic demand when its coefficient of elasticity is equal to one.
If price increases by 20% , quantity demanded falls by 20%.
If price falls by 20%, quantity demanded increases by 20%.
I hope my answer helps you.

Option A is the correct answer
True
<span>Labeling theory is a sociological and criminological theory stating that a strong, negative reaction from society to an individual's crime or misbehavior can drive that individual to be more deviant by affecting (negatively) his/her self concept and by preventing him/her from gaining access to conventional opportunities.
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Extralegal factors are those that are not covered or regulated by law. Examples of these factors or variables include gender, age, social class, race and economic status. Consciously or not, these variables can be taken as "biases" that may affect prosecution and arrest of certain individuals.
Answer:
c. The systematic risk of a portfolio can be effectively lowered by adding T-bills to the portfolio.
Explanation:
If we want to less the systematic risk of the portfolio so we have to add the t-bills so that the systematic risk could be minimized
The other statements that are mentioned are incorrect as for risk these statements are wrong
So only c option would be considered as correct
Hence, the correct option is c.