Answer:
E) Super Bowl
Explanation:
For computing the lowest CPM we need to do the following calculations
                  (a)                  (b)              (a ÷ b)
Particulars          U.S. national edition  U.S. audience size  CPM
Wall streel Journal   $327,897           $1,566,027          20.94%
USA today          $207,720          $1,711,696           12.14%
Bloomberg
Businessweek       $148,300           $900,000          16.48%    Â
Sports Illustrated     $396,600          $3,000,000         13.22%
Super Bowl telecast   $3,800,000        $108,400,000      3.51%
As we can see from the above calculations that the super bowl has the lowest CPM
hence, the option E is correct