The word ”duplicity” refers to deceitfulness or double-dealing, which aligns with the meaning of ”deceit.” Thus, the correct answer is option 1. • deceit (1): Correct; it captures the essence of ”duplicity.” • usefulness (2): Incorrect; this does not relate to duplicity. • emotion (3): Incorrect; unrelated to the concept of duplicity. • wisdom (4): Incorrect; not synonymous with duplicity.