The following dot plot shows the pulse rates of runners after finishing a marathon: dot plot with title of Pulse Rates of Marathon Runners, Pulse Rate on the x axis, and Number of Runners on the y axis with 6 dots over 140, 5 dots over 165, 2 dots over 170, 4 dots over 180

Which of the following data sets is represented in the dot plot?

a. {6, 5, 2, 4}
b.{140, 165, 170, 180}
c. {140, 140, 140, 140, 140, 140, 165, 165, 165, 165, 165, 170, 170, 180, 180, 180, 180}
d. {140, 141, 142, 145, 145, 149, 150, 151, 152, 160, 165, 170, 170, 172, 178, 179, 180, 180}

here's a picture of the question just incase. :)