In order for the central route to persuasion to be effective, the audience must be and
analytical; motivated
attentive; happy
intelligent; unemotional
gullible; distracted

In order for the central route to persuasion to be effective, the audience must be analytical and motivated.

Explanation:

Persuasion is the process by which an individual's behavior and thought are influenced by communication from different people. There are other factors too which affect the persuasion of the person. It is a very powerful factor which has an impact on the daily lives and also the political condition of a place. It includes the process of transmitting an idea and changing the view of the person.

in about winter like late november to january