Calculate the HCF of 125,\, 1415 and 1617.

Answer: Option C

$$\begin{array}{rl}& \text{HCF of }\frac{12}{5},\frac{14}{15}\text{ and}\frac{16}{17}\\ & \frac{\text{HCF of}12,14,16}{\text{LCM of}5,15,17}=\frac{2}{255}\end{array}$$