With greater media coverage in recent years, which factor has become increasingly significant?

a candidate's demeanor

a candidate's health

a candidate's likability

a candidate's family

A candidate's likability is the answer

With greater media coverage in the recent years, the factor that has become increasingly significant was the third choice which is the candidate’s likability. It is because if a lot of people know the candidate and liked him or her base on what he or she shows in media, it will likely be held as significant because people will likely pick what they like most.