Activity D on a CPM Network Has Predecessors B and C,and

question 79

Multiple Choice

Activity D on a CPM network has predecessors B and C,and has successor F.D has duration 6.B's earliest finish is 18,while C's is 20.F's late start is 26.Which of the following is definitely true?

• A)B is a critical activity.
• B)C is completed before B.
• C)D has no slack but is not critical.
• D)D is critical,and has zero slack.
• E)F is critical,and has zero slack.

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Definitions:

Nucleus

Of an atom, central core area occupied by protons and neutrons. Of a eukaryotic cell, organelle with a double membrane that holds the cell’s DNA.

Nitrogenous Base

A molecule found in DNA and RNA that encodes the genetic information in cells.

DNA

A molecule comprising nucleotide chains that encode genetic information vital for the development, functioning, and reproduction of all living organisms and many viruses.

RNA

Ribonucleic acid, a nucleic acid present in all living cells. Its principal role is to act as a messenger carrying instructions from DNA for controlling the synthesis of proteins.