Individuals who are typically regarded as thinking people may be inclined to use the peripheral route to persuasion if the speaker is young and vibrant. the speaker seems to have ulterior motives. the speaker has apparently good motives. they are paid to do so.

The correct option is "the speaker has apparently good motives".

The peripheral route to persuasion happens when the audience chooses whether to concur with the message in light of different cues other than the quality of the contentions or thoughts in the message. For instance, an audience may choose to concur with a message in light of the fact that the source gives off an impression of being a specialist, or is alluring.