According to an influential study by George Miller (1956), on average humans are capable of retaining between 5 and 9 distinct pieces of information in their short term memory (STM). With STM training, it is possible to increase the number of distinct pieces of information that one is capable of retaining in one's STM. So Phillipa has reason to undergo STM training. In a diagram of this argument, where would the following additional information belong: Phillipa's work responsibilities require her to have above average STM. It is an objection to statement 3 It provides direct support to statement 1 It is a tacit premise that should be added to join statement 2 It is a new independent premise that directly supports the conclusion It provides direct support for statement 2