Firemen generally are paid higher wages because a. they are ...

[lidoalex]

Firemen generally are paid higher wages because
 a. they are usually highly educated
 b. they are usually working under riskier conditions
  c. they are working long and uncertain hours
 d. both B&C

Question 2

More bidders tend to increase the selling price in a second-price auction because
 a. bidders bid less aggressively
 b. the true value of the losers is lower
  c. the true values of the losers is higher
  d. Both A&C

[Silverbeard98]

Answer to Question 1

d

Answer to Question 2

c