Which of the following would be considered a member of the U. S. labor force?
Select one:
A. A coal miner without a job who has not looked for work during the past four months.
B. A 10-year-old girl who is a movie star.
C. A teacher who hasn't worked during the past two years but continues to look for work.
D. A private in the army who works in the U. S. at an officers' club

Six years ago, an 80-kw diesel electric set cost $160,000. the cost index for this class of equipment six years ago was 187 and is now 194. the cost-capacity factor is 0.6. the plant engineering staff is considering a 120-kw unit of the same general design to power a small isolated plant. assume we want to add a precompressor, which (when isolated and estimated separately) currently costs $13291. determine the total cost of the 120-kw unit. (hint: skip $ and comma symbols)