1. You have a construction project and plan to do 20% of the work each week. The project is scheduled to take five weeks and costs $80,000 in total. After three weeks, 50% of the work has been completed, and $50,000 has been spent. What is the schedule variance for this project? (SV)

A) + $80,000; ahead of schedule

B) + $80,000; behind schedule

C) - $80,000; ahead of schedule

D) - $80,000; behind of schedule