Which of the following statements, if true, would weaken the argument favoring increased span of control? Select one: a. Performance reports from the last few years show that teams that were monitored closely had higher productivity. b. Porco Rosso recently launched its latest engine model, the PR-4. c. When additional workers were assigned to Mike on a previous occasion, it led to favorable and productive results. d. Mike has a reputation of handling interpersonal conflicts effectively. e. Market trends indicate that the demand for aircraft is expected to increase substantially over the next few years.