Fear-inducing messages can increase persuasion. A fear request is a persuasive message that tries to provoke fear in order to divert behavior through the threat of upcoming danger or harm.
Fear messages that let the audience know they can achieve the urged behavior or that the behavior will have a positive result are more useful than fear request messages without word of recommended actions.
Thus, option "C" is correct, Fear-inducing messages can increase persuasion.
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