[单选题]
04.03: Which of the following graphs coug9k/2iwnue e77d itq+ld correctly ru+ +hszs)of k0epresent the motion of an object moving with a constant speed in a straight +s ok0suh) fz+line?
A. Graph I only
B. Graph II only
C. Graphs I and IV only
D. Graphs II and V only
E. All of the above graphs represent constant velocity