Bird Feeders, Inc. assigns capital budgeting proposals to three risk classes.

Seven capital budgeting proposals are briefly described in the table below.

ProjectProjectRiskCost of

NumberIRRClassCapital

#110%A12%

#211%A12%

#315%B14%

#412%B14%

#513%B14%

#615%C16%

#726%C16%

Assuming the projects are independent of one another, which projects look acceptable?