Multiple IRRs for a particular project can occur when there is (are): large abandonment costs at the end of a project's life B.

Multiple IRRs for a particular project can occur when there is (are):        

A. large abandonment costs at the end of a project's life

B. a major shutdown and rebuilding of a facility sometime during its life

C. more than one sign change in the pattern of cash flows over a project's life.

D. all of the above are correct