Three major transportation segments and a major company within each segment are as follows: Segment Motor carriers Railroads Transportation Arrangement Company YRC Worldwide Inc. (YRCW) Union Pacific Corporation (UNP) C.H. Robinson Worldwide Inc. (CHRW) YRC Worldwide Union Pacific C.H. Robinson Worldwide Sales Average long-term operating assets $4,891 842 $14,869 $21,240 50,997 2,316 a. Determine the asset turnover for all three companies. Round to two decimal places. b. Interpret the differences in the asset turnover in terms of the operating characteristics of each of the respective segments