I believe the answer is: Similarity
According to the gestalt principles, individuals that possess similar objects in term of shapes or colour would be automatically perceived as being in the same group. In public setting such as soccer match, this help the audience distinguish one team with another.
Carl Rogers believed<span> that for a </span>person<span> to achieve self-actualization they </span>must<span> be in a state of congruence. ... </span>Rogers<span> describes an </span>individual<span> who is actualizing as a </span>fully functioning person<span>. The main determinant of whether we will become self-actualized is childhood experience.
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<span>The most unpredictable presentation aid a speaker could use is a person or an animal.
Presentation aids are things other than the expressions of a speech that are utilized to support the goal of the speaker. Specifically, they can be visual aids, sound aids or other supporting innovation.</span><span /><span>
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It seems that you have missed the given options for this question, but anyway, the answer would be DOMESTIC PRODUCERS. A tariff has the effect of granting domestic producers <span>a larger share of the domestic market. Hope this is the answer that you are looking for. </span>