Line XX shows the production possibility curve (PPC) for a worker who picks peas and beans during a 10 hour working day. What might make the worker’s PPC move to line YY?
- Aa decrease in working hours to 8 per day and a machine that increases the worker’s pea picking productivity
- Ba machine that increases the worker’s pea picking productivity only
- Ca new work schedule where the worker spends 6 hours per day picking peas and only 4 hours picking beans
- Da reduction in working hours to 8 per day only