From the pie chart: men = 60%, women = 32%, boys = 2%, girls = 6%.<br>
Total = 2000 participants (from girls = 6% = 120).<br><br>
Adults = men + women = 60% + 32% = 92% of total.<br>
Adults = 92% &times; 2000 = 1840.<br><br>
Children = boys + girls = 2% + 6% = 8% of total.<br>
Children = 8% &times; 2000 = 160.<br><br>
Difference = 1840 &minus; 160 = 1680.<br><br>
Final Answer: B: 1680