There are several information's already given in the question. Based on those information's the answer can be easily deduced.
Number of days in the year 2008 = 366 Number of traffic collisions in the year 2008 = 197214 Then Number of t<span>raffic collision related injuries per day = 197214/366 = 538.84 = 540 </span><span>This works out to 540 per day. The correct option is option "C".</span>