Which of the following are true?

i. If, when conducting a scenario analysis, you find that the NPV of a project under the worst case scenario is negative, you should definitely reject the project.

ii. If, when conducting a scenario analysis, you find that the NPV of a project under the worst case scenario is positive, you should definitely accept the project.

iii. If the accounting breakeven number of units sold for a project is less than the net present value breakeven number of units sold for the project, then the project should definitely be rejected.

iv. The option to shut down a project if the project performs poorly after it is started is referred to as a "real option".

1) iii and iv, but not i or ii

2) ii and iv, but not i or iii

3) i, iii, and iv, but not ii

4) i, ii, and iv, but not iii