Multiple Choice Question

Sara claims that the number of pages she has read in her book is proportional to the number of minutes that she has spent reading. She collects several data points to prove her claim and expresses the data points as (x, y) coordinate pairs.

Which of the following actions could Sara take to prove her claim?

A) Collect data points where x represents the number of pages read and y represents the number of minutes spent reading.

B) Collect data points where x represents the number of minutes spent reading and y represents the number of pages read.
C) Investigate if there is a linear relationship between the number of pages read and the number of minutes spent reading.
D) Compare the average number of pages read per minute for different books.