Net Preference Relations
Have you tried writing down your intuition? Maybe the preference relationship of the electorate as a whole is transitive, but not complete, or complete but not transitive, etc. 

I would start, for example asking the electorate, which one is preferred Biden or Warren? 2 voters would prefer Biden and one would prefer warren, so using the majority rule, we can conclude that for the electorate as a whole: Biden $&gt;_{elect}$ Warren. Keep going with all the pairs and conclude whether the  preferences are complete or transitive.