Which pattern of organization is especially good for tributes?

A celebrity __________ is a special type of testimonial involving a well-known celebrity rather than an average person-on-the-street or nameless spokesperson

Fill in the blank with correct word

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).