Instructions: In this task, you need to answer the given multiple-choice question on geometry. Classify your answers into 'a', 'b', 'c', 'd', and 'e'.
Input: Problem: what is the total surface area in square meters of a rectangular solid whose length is 6 meters , width is 5 meters , and depth is 2 meters ?
Options: ['a ) 100 m 2', 'b ) 104 m 2', 'c ) 106 m 2', 'd ) 108 m 2', 'e ) 160 m 2']
Output:
b