For each variable, determine whether it is best thought of as discrete or continuous. Variable Discrete Continuous (a) The time for a participant to identify the color of the letters when the word red is shown in green letters on a computer screen O (b) The number of typographical errors in an edition of the metropolitan newspaper (c) The body temperature measurement of a participant in a lie-detector test O (d) The number of your fellow classmates who have used the World Wide Web for information on Seasonal Affective Disorder O