Let $\mathrm{U}$ Be the Smallest Possible Universal Set That Includes All of All

Multiple Choice

Let $\mathrm{U}$ be the smallest possible universal set that includes all of the crops listed; and let $\mathrm{A}, \mathrm{K}$ , and $\mathrm{L}$ be the sets of five crops in Alabama, Arkansas, and Louisiana, respectively. Find the indicated set.
- $\mathrm{A} \cap \mathrm{K} \cap \mathrm{L}$

A) $\{s\}$
B) $\{c, h, n, p, r, s, t, w\}$
C) $\{n, p, s\}$
D) $\{n, p\}$