From the given information, which states that 95% of the election ads are aired on Social Media, the conclusion that can be drawn is:
C) There is a preference for airing ads on Social Media.
The fact that such a high percentage of election ads are chosen to be aired on Social Media suggests a preference or bias towards using this platform as a primary or preferred method for election advertising. This doesn't necessarily mean that Social Media is the most effective platform in all cases, but it does indicate a strong inclination among advertisers to use it. Other factors such as the target audience, reach, cost-effectiveness, and specific campaign strategies would also play a role in determining the choice of advertising platforms.
Options A and B cannot be definitively concluded from this information alone, as the effectiveness of a platform depends on various factors and goals. Option D, stating that all methods have an equal likelihood of being selected, is contradicted by the fact that 95% of ads are on Social Media, indicating a clear preference.