Final answer:
The ego-defensive function of attitudes is the one that protects a consumer from threatening information, serving as an internal self-defense mechanism.
Step-by-step explanation:
According to the functional theory of attitudes, the ego-defensive function of attitudes enables a consumer to protect himself or herself from information that may be threatening. This psychological function is one of the internal mechanisms that individuals use to guard themselves against negative emotions and self-perception. This defense mechanism can lead to a rejection or reinterpretation of information that doesn't align with their existing beliefs or feelings.