What does it mean when a vine is iconic

i really dont get it please explain

Eye injuries usually occur as a result of all of the following things, except: a) proper machine operation b) battery explosion c) falling or flying debris d) electric welding arc

Which action is good business etiquette? a. switching your cell phone off before you enter a meeting b. keeping your cell phone on low volume before you enter a meeting c. setting a pleasant ring tone on your cell phone before you enter a meeting d. setting a standard ringtone on your cell phone before you enter a meeting

What are some examples of what can be changed through options available in the font dialog box? check all that apply. font family italicizing bolding pasting drop shadow cutting character spacing special symbols