Which of the following statements is false? fragments can be hosted by an activity or they can execute independently. you can create an xml file describing the user preferences, then class preferencefragment can use that file to build an appropriate preferences gui. a fragment typically represents a reusable portion of an activity’s user interface, but may also represent reusable program logic. like an activity, each fragment has its own layout that’s typically defined as an xml layout resource file (guis also can be created dynamically).