Correct option is C
Solution:
Time range: 4 AM to 8 PM.
Voting % starts increasing from before 6 AM — around 5 AM, the % voting begins rising from 0.
That means some votes are shown as cast before 6 AM, which violates the given condition.
Why Graph C is Incorrect:
The question clearly states polling starts at 6 AM.
Cumulative % voting cannot begin before 6 AM, yet in this graph, it clearly does.
This makes Graph C logically invalid.











