Final answer:
Candidate C would need to have more votes than Candidates A and B to achieve a plurality victory. Among the options 40%, 30%, 35%, and 25%, a 40% vote share for C could indicate a plurality victory if it is the highest percentage and less than a majority.
Step-by-step explanation:
A plurality victory is one where a candidate receives more votes than any other candidate but less than an absolute majority, which is over 50%. In this scenario, Candidate C would achieve a plurality victory if they received any percentage of votes that is higher than that of Candidates A and B, yet still less than 50%. Among the options provided:
a) 40%
b) 30%
c) 35%
d) 25%,
if Candidate C receives 40%, this could be considered a plurality if no other candidate received more than this percentage. Without knowing the percentages obtained by A and B, we can only determine that a 40% share for Candidate C might represent the highest among the candidates.
In a majority election, a candidate must receive over 50% of the votes to win outright, which would not occur with the percentages listed above. If no candidate receives a majority, as in the case mentioned in the question where Candidate D would face Candidate B in a runoff, this is an indication that the initial election did not produce a majority victor.