Two racing cars of masses \[{{m}_{1}}\] and \[{{m}_{2}}\] are moving in circles of radii \[{{r}_{1}}\] and \[{{r}_{2}}\] respectively. Their speeds are such that each makes a complete circle in the same length of time T. The ratio of angular speed of the first car to that of the second car is

• A. \[{{m}_{1}}:{{m}_{2}}\]                
• B. \[{{r}_{1}}:{{r}_{2}}\]       
• C.        \[1:1\]              
• D.        \[{{m}_{1}}{{r}_{1}}:{{m}_{2}}{{r}_{2}}\].