Bob is a PM. He's three weeks into the biggest project of his career, to date. He needs to compare planned and actual performance thus far. Help Bob determine Cost Variation and Schedule Variation at the end of week 3 ... a. Activity A: Planned duration: 2 weeks. Actual duration: 2 weeks. Planned cost: $10 (in thousands). Actual cost: $15. b. Activity B: Began as soon as Activity A was completed. Planned duration: 1 week. Actual duration: Unknown at this time. Percent completed: 50%. Planned cost: $5 (in thousands). Budget spent to date: $3. CV at end of week 3: -5.5 d. SV at end of week 3: C