Consider the following project management problem:

$\backslash$table$[[$Task$,\backslash$table$[[$Immediate$],[$Predecessor$($s$)]],\backslash$table$[[$Duration$],[($Days$)]]],[$A$,$none,$2],[$B$,$none,$4],[$C$,$none,$8],[$D$,$A$,1],[$E$,$B$,$D$,6],[$F$,$D$,2]]$

Please answer the following three questions, based on this information.

What is the expected completion time of this project?

A$.23$ days

B$.12$ ddays

C$.8$ days

D$.9$ days

E$.10$ days

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