To manage a matrix-managed staffing constraint, it is recommended that Agile teams use skilled generalist resources. Which of the following describes a generalized specialist? a) They have general knowledge about Waterfall projects but not Agile. b) They have reached skill mastery. c) They are specialists in their field, but they have additional skill sets that can be used on a project. d) They have limited experience in Agile and may need coaching to be more successful