Date values in Tableau represent specific points in time and are typically formatted in a standard date format. Option A, "2020-05-01", is a standard date format representing the 1st of May, 2020. Option D, "January 1, 1995", is another example of a date value, representing the 1st of January, 1995. Options B ("December") and C ("Wednesday") represent a month and a day of the week, respectively, but do not specify a particular date.