There are various similarities between the CPM and PERT methods. Which of the following is not one of those similarities?

a$.$ Any project can be broken down into component activities that require different amounts of time.

b$.$ Any project can be broken down into component activities that must be accomplished in a specific order.

c$.$ Both techniques use the same method to calculate the time element of the activities in the project.

d$.$ Both require a detailed network of the project that clearly indicates each of the main activities and the precedence relationship among the activities.