Can someone teach me the process to answer this type of question please!

1. USING THE FOLLOWING TABLE, DRAW A NETWORK DIAGRAM AND ANSWER THE FOLLOWING:

(the diagram is the same for all questions of this type throughout the exam-so only draw it once to answer all the questions)

Given: Activity A - Duration 4 - Predecessor none

Activity - B Duration 6 - Predecessor none

Activity C - Duration 5 - Predecessor A

Activity D - Duration 7 - Predecessor A, B

Activity E - Duration 5 - Predecessor C

Activity F - Duration 7 - Predecessor D

Activity G - Duration 5 - Predecessor D, B

Activity H - Duration 4 - Predecessor B

Activity I Duration 4 Predecessor E.F

Is D on the critical path?

True

False