Four Different Forecasting Methods Were Applied to a Set of Time-Series

Multiple Choice

Four different forecasting methods were applied to a set of time-series data. The root-mean-square error (RMSE) was calculated for each method and is provided in the table below. Rank the four methods from the most accurate to the least accurate?
$$\begin{array} { | l | l | l | l | l | } \hline \text { Method } & \text { A } & \text { B } & \text { C } & \text { D } \\\hline \text { RMSE } & 10.1 & 11.9 & 12.5 & 9.5 \\\hline\end{array}$$

A) A, D, B, C
B) D, A, B, C
C) C, B, A, D
D) C, B, D, A