Consider the following statement associated with critical path:1. Critical path is the most important sequence of activities which has no float and which determine the project completion period2. Critical path is the largest path with shortest duration within which the project can be completed3. The difference between early start time and late finish time must be equal to the activity duration4. Cannot pass through dummy activityWhich is among the above are correct statements?

• A. 1, 2 and 4
• B. 1, 3 and 4
• C. 1, 2 and 3
• D. 1, 2, 3 and 4