Why is slack important to a project manager? (b) How are WBS and project networks linked? A) (a) To allow for unexpected delays and variations; (b) By defining dependencies between project tasks B) (a) To enhance team motivation; (b) By creating a hierarchical structure of project activities C) (a) To streamline communication; (b) By allocating resources to project tasks D) (a) To enforce project deadlines; (b) By setting project milestones