Answer:
B) the same amount of capital and labor
Step-by-step explanation:
Only an increase in productivity shifts the production function upward given that all factors of production remain the same. Generally technology improves productivity and causes those shifts.
Productivity measures the rate of output per unit of input. E.g. I write 10 pages per hour. If my writing productivity increases, I will write 12 pages per hour. Labor productivity is measured by the amount of output produced per hour worked.