The table below shows how the total physical product of labour (TPPLTPP_LTPPL) per day changes as more workers are employed by a price-taking firm producing organic honey:
| Number of workers (LLL) | Total Physical Product (TPPLTPP_LTPPL, jars of honey) |
|---|---|
| 0 | 0 |
| 1 | 40 |
| 2 | 75 |
| 3 | 102 |
| 4 | 122 |
| 5 | 135 |
The market price of honey is £4.00\text{\pounds}4.00£4.00 per jar, and the market wage rate for honey-harvesting workers is £100\text{\pounds}100£100 per day.
According to marginal productivity theory, how many workers should the firm employ to maximize its daily profit?
2 workers
3 workers
4 workers
5 workers
