Which of the Following Variables Are Discrete? I)

Multiple Choice

Which of the following variables are discrete? I) . the volume of liquid in a 16-ounce bottle of soda pop
II) ) the percentage of males 18-25 who participate in a contact sport
III) . the number of broken eggs in a package of a dozen eggs
IV) ) a count of the statistics majors at a certain university

A) II only
B) II and III only
C) III and IV only
D) I only
E) All of these variables are discrete.