Correct option is B
Solution:
Clearly, winning party is Party D with 54 votes
Now to find groups that would NOT have been able to defeat the winning party, we check the sum of votes for party groups given in options.
Sum of votes for Party C and Others = 29 + 17 = 46 < 54
Sum of votes for Party F and Party B = 39 + 37 = 76 > 54
Sum of votes for Party B and Others = 37 + 17 = 54 = 54
Sum of votes for Party F and Others = 39 + 17 = 66 > 54
Clearly, the group that would NOT have been able to defeat the winning party is Party C and Others.




