Plan from the supplied facts
Fictional required capabilities are X,Y,Z. Option A covers X/Y at 4 hours; B covers Y/Z at 3; C covers X at 2. Coverage is a union, not a points sum. The objective is to cover all three with least effort, with no dependencies beyond those shown.
| Set | Hours | Covered capabilities | Complete |
|---|---|---|---|
| A + B | 7 | X,Y,Z | Yes |
| B + C | 5 | X,Y,Z | Yes |
| A + C | 6 | X,Y | No: Z missing |
Work through the choice
B+C covers all three in five hours. Every single option misses something; A+B costs more, A+C is incomplete and all three cost nine.
Why is the six-hour A+C set not a cheaper complete alternative?
Show the worked answer
It has no Z coverage. Duplicate X coverage does not compensate for missing Z; the complete set with least effort remains B+C at five hours.
Material to use in your plan
Use one column per required capability and mark each option’s coverage. For each subset, union the marked columns and sum effort; compare only complete subsets.