Task: Question Answering
Input (English): Question: A certain quantity is measured on two different scales, the R-scale and the S-scale, that are related linearly. Measurements on the R-scale of 6 and 24 correspond to measurements on the S-scale of 30 and 60, respectively. What measurement on the R-scale corresponds to a measurement of 100 on the S-scale?

 Option A: 20

 Option B: 36

 Option C: 48

 Option D: 60

 Option E: 84
Output (English): Option C