The network below represents a project being analyzed by the critical path method. Activity durations are A $=5,$ B $=2,$ C $=12,$ D $=3,$ E $=5,$ F $=1,$ G $=7,$ H $=2,$ I $=10,$ and J $=6.$

Reference: Project$-1$

Which of the following statement is false?

A$.$ If activity C was delayed by six time units, the project duration will be delayed by one time unit

B$.$ The latest start of activity E is $17$

C$.$ The slack time at activity H is $5$

D$.$ The length of the critical path is $30$

E$.$ None of the above, they are all true