Listening to evaluate is the ability to analyze and make a judgment about the validity of what someone says

Which answer below describes the Refine step in the 4R's

method of generating key points. a. . Gather your notes and supporting materials, and then reread and critique them b. Regroup your ideas and supporting materials into nonoverlapping categories. c. Boil down the best ideas and information to a few "keepers." d. Make sure you do not have more than three key points. Make sure your key points are clear and memorable.

Bernadine works as a clerk in a candy store.  Her boss told her that she must smile at every customer whether she feels like it or not because smiling has been shown to increase candy sales.  The smiling rules is an example of ______________________.

Fill in the blank(s) with the appropriate word(s).