单选题
A company has three mutually exclusive capital projects with varying levels of risk and an analyst gathers the following information:
| Project 1 | Project 2 | Project 3 |
| Internal rate of return | 19% | 22% | 21% |
| Profitability index | 4.7 | 3.3 | 3.5 |
| Payback period (years) | 1.2 | 0.9 | 1.0 |
The most appropriate investment decision is to invest in:
A. Project 1.
B. Project 2.
C. Project 3.