At an election 2 candidates are participated and a candidate got 20% of votes and defeated by 500. and 10 votes are invalid. Find the total polled votes?	Select the correct option.
A) 843  B) 1023  C) 965  D) 413  E) 1245

Rationale: "winner votes = 100 - 20 = 80 polled votes = [ ( 100 * 500 ) / 2 * 80 - 100 ] + 10 = 843 ( approximately ) answer is a"
Answer: A