What is critical path method?

You already put the correct answer , it is:

E. All the above.

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I agree with Ms. Ghada answer.............................

thanks invite. ..........l think all the above 

Thanks for invitation

I amagreeing with my colleague’s answer Ms. Ghada Eweda 

All the above is the answer, please verify

I think answer is E All the Above

E is the best answer, how ever I think Bar chart and CPM have their own individual advantages

thanks invite....................i..think all  the  above

thanks for invition ,,,,,,,,,,

my choice is option E