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Match the following prefixes to their meanings:

I. kilo II. mega III. peta IV. giga V. tera A. 1,000,000 B. 1,000 C. 1,000,000,000 D. 1,000,000,000,000,000 E. 1,000,000,000,000

Which of the following social engineering types is based on the idea that if one person does it, others will, too?

a. Scarcity b. Authority c. Social validation d. Reciprocation