K. Nelson project manager of Print Software, Inc., wants you to prepare a project network; compute the early, late, and slack activity times; determine the planned project duration; and identify the critical path. His assistant has collected the following information for the Color Printer Drivers Software. PLEASE SHOW DRAWING AND ANSWER QUESTIONS.

ID Description A External specifications B Review design features C Document new features D Write software E Program and test F Edit and publish notes G Review manual H Alpha site I Print manual J Beta site K Manufacture L Release and ship Predecessor Time None 60 40 20 10 10 12 E. F H