PROBLEM $2$: Proj Risk Analysis

Xenex Inc., a supplier of hospital room disinfection systems, has a cost of capital of $12$ percent.

To fairly evaluate projects and adjust for risk, it adds or subtracts $2$ percentage points to the discount rate.

Currently, two mutually exclusive projects are under consideration. Both have a cost of $$200,000$ and will last four years.

Neither project is projected to generate positive cash flows and thus both are evaluated on the basis of costs.

However, Project A is judged to be a riskier$-$than$-$average project but Project B is determined to a lower than average risk investment.

In which project should Xenex invest its capital?

Please have all explanations in excel formula or written out. Thank you!