Previously unemployed input: Suppose a government project hires Lg hours of previously involuntarily unemployed workers. The social cost of labour for this project should theoretically be equal to the area The area can be calculated by using the formula WE Lp + LE WR Lp Lp L L LE O a. a+b; (WF-WR)*Lg O b. b+c; WF/2*Lg O c. a+c; (WF+WR)/2*Lg O d. None of the answers above is correct