In which of the following years was total number of participates (athletes) the second highest from Country C?

Answer: Option E

Total number of athletes from C in various years:
2005 → (4.5 + 3.1) × 100
            = 7.6 × 100
            = 760
2006 → (6.9 + 3.3) × 100
            = 10.2 ×100
            = 1020
2007 → (4.8 + 2.8) × 100
            = 7.6 × 100
            = 760
2008 → (6.6 + 4.2) × 100
            = 10.8 × 100
            = 1080
2009 → (7.9 + 6.3) × 100
            = 14.2 × 100
            = 1420
2010 → (10.8 + 6.9) × 100
            = 17.7 × 100
            = 1770
It was second highest in 2009. So, the correct answer is (E).